Physics 35 Coulomb's Law (1 of 8)

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  • เผยแพร่เมื่อ 13 ม.ค. 2025

ความคิดเห็น • 271

  • @noblessv925
    @noblessv925 9 ปีที่แล้ว +231

    I just found out that you have calculus lectures on your website. I'm going to cry. Who needs Khan academy when we have Michel Van Biezen!

    • @ElkePoN
      @ElkePoN 8 ปีที่แล้ว +2

      lol true

    • @mjcorcoran84
      @mjcorcoran84 7 ปีที่แล้ว +13

      PatrickJMT saved my ass in Calc 3!

    • @livlacerna4394
      @livlacerna4394 7 ปีที่แล้ว +3

      yeah.. I wished, I found him earlier.. Although I already passed my calculus 1 and 2, I might have better grades on both courses.

    • @Medwdi
      @Medwdi 7 ปีที่แล้ว +24

      Professor Leonard is the best by far

    • @InfinityLRDL
      @InfinityLRDL 6 ปีที่แล้ว

      melody emmanouilidi profesor Leonard is great at calculus 3 PatrickJMT is great at calculus 1,2, & 3. The Khan academy is not that great

  • @xiu8548
    @xiu8548 4 ปีที่แล้ว +19

    Michel's channel is one of the key things for my academic success. You are far more better than my professors. Thanks a lot!!!!!!

  • @25_26
    @25_26 3 ปีที่แล้ว +14

    This is far better than a so called "professor'" 's lectures at istanbul technical university which is located at middle-east swamp turkey. Thank you Sir. I passed Physics 2 class with grade A by your help.

    • @MichelvanBiezen
      @MichelvanBiezen  3 ปีที่แล้ว +4

      Congratulations! Thank you for sharing.

    • @erenarslan8186
      @erenarslan8186 2 ปีที่แล้ว +2

      I'm going through the same way. Pretty sad

  • @MichelvanBiezen
    @MichelvanBiezen  10 ปีที่แล้ว +2

    Daniel,
    That is an interesting question and the answer is very complicated.
    It turns out that matter sometimes has a charge property. There appear to be 2 of those, with one opposite to the other.
    We therefore called them positive and negative.
    We found out through experiment, when they are alike, they repel, and when they are opposite they attract.
    But explaining what it is, is very difficult.

    • @Peter_1986
      @Peter_1986 10 ปีที่แล้ว

      Sir, is this the very first video concerning Electricity, Magnetism, Electric Fields and similar content?
      I am having some problems understanding topics like Polarization and the Phasor Diagram, so it would be great to know if I could start with this video without needing any specific prior knowledge about electricity and magnetism in general.

    • @RalphieDDD
      @RalphieDDD 11 หลายเดือนก่อน

      I agree!

  • @chemiflask7692
    @chemiflask7692 11 หลายเดือนก่อน +2

    1 M subscribers! congrats! well deserved, this is one of my fav academic channels on youtube.

  • @Team_with_Deepak
    @Team_with_Deepak 9 หลายเดือนก่อน +25

    I watch your videos in 2024

    • @MichelvanBiezen
      @MichelvanBiezen  9 หลายเดือนก่อน +17

      Physics doesn't age. 🙂

  • @EjMacarus
    @EjMacarus 6 ปีที่แล้ว +19

    Thank you so much for the videos! Sadly I have a terrible professor, but finding these videos re-sparked my hopes to learn. My best to you!

  • @valeriereid2337
    @valeriereid2337 ปีที่แล้ว +9

    Thank you so very much. These videos were instrumental to me getting an A+ in physics last semester.

    • @MichelvanBiezen
      @MichelvanBiezen  ปีที่แล้ว +3

      Wow! Congratulations. Keep up the good work! 🙂

  • @charupriya7165
    @charupriya7165 5 ปีที่แล้ว +2

    Thank you so much sir.... I have no words.... Just learnt the things which i didn't learn in 7 months with that so called teacher .... U changed my lifee .. and I'm forever grateful to u... God bless!

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว +2

      Thank you for your comment. We are glad we were able to help you.

  • @vinKroos8
    @vinKroos8 6 หลายเดือนก่อน +4

    I am an advanced level student from sri lanka and this is really helpful. if you ever thought of making fortune just come to sri lanka and start doing tuition classes

    • @MichelvanBiezen
      @MichelvanBiezen  6 หลายเดือนก่อน +1

      Glad you find our videos helpful. (Thank you fot the tip).

  • @ghadahalharbi3915
    @ghadahalharbi3915 7 ปีที่แล้ว +6

    you are my life savor, the best physics prof I have ever seen please keep it up we need you

  • @fernandodominguez1
    @fernandodominguez1 6 ปีที่แล้ว

    More than 4000 high quality videos!!!. As prolific as Euler. Probably Guinness Record. Congratulations and thank you

  • @pyroclastic8924
    @pyroclastic8924 4 หลายเดือนก่อน +1

    i'm so glad i found you. now i actually have a shot at passing physics 2

  • @mazinnasralla2036
    @mazinnasralla2036 9 ปีที่แล้ว +1

    Two approaches to calculating Direction of the Force:
    1) Work out Magnitude and then work out the sign and direction afterwards as is done in these examples or
    2) Do it one step by using the Vector form of the equation which is quicker, but you must remember that the Force on Charge X due to Y is multiplied by displacement Vector YX. That way the signs work out

  • @alejandrodavidrodriguez7038
    @alejandrodavidrodriguez7038 5 ปีที่แล้ว +7

    Thank you, super clear and straight to the point. It's awesome you provide free resources for these courses online!

  • @zakirhussain-js9ku
    @zakirhussain-js9ku 2 ปีที่แล้ว +2

    It seems destructive interference reduces flux density b/w opp. charges & higher density on opposite sides pushes the charges towards each other.

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +1

      When 2 electric field are directed in opposite directions, they will indeed experience destructive interference.

  • @meren6223
    @meren6223 7 หลายเดือนก่อน +3

    sir Michel I am so unhappy because I found you just now. I wish I had found you before. You are the best.

  • @cyusaarnold3544
    @cyusaarnold3544 6 ปีที่แล้ว +5

    Thanks for ur detailed explanations. I think this channel can help many physics or engineering student to understand and even pass their exams.. It s been really helpful. Thanks😄

  • @rhuthk2710
    @rhuthk2710 5 ปีที่แล้ว +1

    I watch your videos on your website so i cant really have a chance to say thank you over there. But thanks a lot for all of your videos. They are life savers indeed. Please never stop teaching sir.

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว

      We are glad you are finding the website helpful

  • @ajnustian1086
    @ajnustian1086 5 ปีที่แล้ว +2

    Thanks sir....because of You ...my EMT paper went good

  • @ahmed99094
    @ahmed99094 10 ปีที่แล้ว +157

    my left ear will have fun. :D

    • @ineedcoffee7949
      @ineedcoffee7949 9 ปีที่แล้ว +9

      +Ahmed Ali LOL this whole time I was thinking my headphones blew out until I read this comment haha

    • @Peter_1986
      @Peter_1986 6 ปีที่แล้ว

      I just put my headphones on the table and turn on max volume - loud enough to be audible, and fun for both of my ears! :D

    • @tarikcetinkaya4702
      @tarikcetinkaya4702 4 ปีที่แล้ว

      can we change volume options for headphones ?

  • @Cottarino
    @Cottarino 2 ปีที่แล้ว +2

    If a conductor is charged by induction, but then it is grounded. What happens to the charge of the conductor. Because the net charge of a conductor is neutral when charged by induction right?

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +1

      In order for an object to be charged by induction, it must be connected to a conducting path, otherwise it cannot acquire the charges by induction. Once there is an excess charge and you remove the source that caused the charging by induction and you remove the conducting path, the charge will remain. If you then connect the object to a ground, the excess charge will conduct to the ground and the object will no longer be charged.

  • @Tuanski
    @Tuanski 9 ปีที่แล้ว +83

    He is a ninja 4:35

  • @saurabhmaurya3177
    @saurabhmaurya3177 4 ปีที่แล้ว +2

    You are a best teacher, sir

  • @johncartwright4041
    @johncartwright4041 3 ปีที่แล้ว +3

    Michel is there anything you don't know! I'm a retired Chemistry/ Mathematics teacher and enjoy watching your videos.

    • @MichelvanBiezen
      @MichelvanBiezen  3 ปีที่แล้ว +1

      Wow, thank you! (There are actually many things I don't know, but it is great to hear from a colleague)

  • @sadoliver5994
    @sadoliver5994 9 ปีที่แล้ว +4

    Thank you so much for this! Beats reading the book and understanding how to do the problems by yourself! :)

  • @mansisikarwar53
    @mansisikarwar53 6 ปีที่แล้ว +1

    The best ever explanation. I m from India and I really loved it.

  • @ioX7y3JHlCdtAiE
    @ioX7y3JHlCdtAiE 2 หลายเดือนก่อน +1

    Sir, you're truly astounding.

    • @MichelvanBiezen
      @MichelvanBiezen  2 หลายเดือนก่อน +1

      Far from it, but glad we are able to help students from around the world. (My wife puts in an enormous amount of work filming, editing, producing, and uploading all these videos while making all the amazing thumbnails.

  • @warrenwillingham6597
    @warrenwillingham6597 9 ปีที่แล้ว +7

    I guess this is an intermittent problem, but only the left audio channel is working for a few videos.
    To entirely prevent this, you can set your audio to MONO in your settings when you are creating the video.

    • @MichelvanBiezen
      @MichelvanBiezen  9 ปีที่แล้ว +5

      +Warren Willingham We had audio problems with our old videos. We have since figured out how to correct these problems. Thanks for letting us know.

    • @deepumishra3714
      @deepumishra3714 8 ปีที่แล้ว

      Michel van Biezen you are great sir glad to know u thank u so much

  • @ElkePoN
    @ElkePoN 8 ปีที่แล้ว +3

    Do more videos on physics 2 please! You explain extremely good! My teacher goes like 100 mph it's impossible to retain anything, please

  • @vedantsinghal5637
    @vedantsinghal5637 4 ปีที่แล้ว +1

    sir you should add some practice worksheets on your ilecture website it will really make us believe in our self that we understood the topic and if we didn't you are always there sir to help us understand it. hope you will like my idea.

    • @MichelvanBiezen
      @MichelvanBiezen  4 ปีที่แล้ว +1

      It is a very good idea. We currently don't have the time, but in the future this may become possible.

  • @katiegrav6983
    @katiegrav6983 9 ปีที่แล้ว

    The best video that I've seen so far explaining this topic... Thank you so so so so so much!!!!!!

  • @WanSyazlina
    @WanSyazlina 8 ปีที่แล้ว

    I have several questions... i just want to deeply understand the concept first. hehe
    1)If there is only one charge, Will there still be an electric force. Or does electric force only exist between two charges?
    2) if there is no electric field, then there is no electric force?
    3) Why must a test charge be put into the magnetic field, what if it wasn't a test charge put into the electric field, would it still move within the electric field?
    4) What do these charges actually look like in real life? Like where are they located. Is everything made out of charges?

    • @tomdarnell5905
      @tomdarnell5905 6 ปีที่แล้ว

      Do you still want the answer... I will answer if ya want.

  • @benchang8905
    @benchang8905 8 ปีที่แล้ว +1

    thank you very much because you save me from failing physics!

  • @roccom.3924
    @roccom.3924 ปีที่แล้ว +2

    I am taking E&M junior level in college next semester. Is this the playlist where I start? Thank you!!

    • @MichelvanBiezen
      @MichelvanBiezen  ปีที่แล้ว +2

      These playlists starting with this one will give you a great overview for your upcoming class. The problems in the class that you will be taking will be more difficult, but getting a good handle on all the major concepts here will help you a lot and there is a fair amount of overlap.

  • @TheDespicableD
    @TheDespicableD 10 ปีที่แล้ว

    Michel, your videos helped me succeed in Mechanics. Now, I'm taking E&M and I'm pretty sure that that these supplementary exercises will me understand the new concepts this semester! Thanks and happy new year!

    • @MichelvanBiezen
      @MichelvanBiezen  10 ปีที่แล้ว

      Good job!
      All the best in your E&M studies

    • @ksoni524
      @ksoni524 10 ปีที่แล้ว

      Are you in John abbot? or any other cegep in QC?

    • @MichelvanBiezen
      @MichelvanBiezen  10 ปีที่แล้ว

      Kabir Soni
      Kabir,
      No, I am doing this independently.

  • @magicrectangleEnt
    @magicrectangleEnt 5 ปีที่แล้ว +1

    dude you're a hero...

  • @lecudig92
    @lecudig92 6 ปีที่แล้ว +1

    Very helpfull, you helpme pass Mechanics, now Im in physII ( Electric&Magnetism)

  • @Truth_Seeker567
    @Truth_Seeker567 2 ปีที่แล้ว +1

    Thank you so much Michel for you kind help by making and sharing this clear and fantastic video.

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +1

      You are very welcome. Glad it was helpful. 🙂

  • @ryanleyland5565
    @ryanleyland5565 5 ปีที่แล้ว +1

    Thank you so much for sharing amazing knowledge. This Electricity & Magnetism playlist has helped me greatly. Differential calculus next semester, so I know where to look. Thanks again Michel, Ryan

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว +1

      You are welcome and thanks for sharing.

  • @evinwilliam
    @evinwilliam 9 ปีที่แล้ว

    You really helped me tomorrow for my exam ... Really usefull .. Thank you so much

  • @FcBarcelonaKid
    @FcBarcelonaKid 8 ปีที่แล้ว +45

    Better than my shitty professors

  • @shamssaied4801
    @shamssaied4801 2 ปีที่แล้ว +3

    I have a question,
    I was looking for a good resource to study electricity and magnetism from and stumbled upon this playlist.
    Now the question is: is this playlist calculus based or can I get through it without any knowledge of calculus?

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +1

      You don't need calculus for this playlist (for most of the videos). For some you may need calculus, but you can skip those.

  • @nehirkaramese
    @nehirkaramese ปีที่แล้ว +3

    Thank you for simplifying this 😭 I was about to regret choosing engineering...

    • @MichelvanBiezen
      @MichelvanBiezen  ปีที่แล้ว +1

      Glad we were able to help. Don't give up and keep it going.

  • @MrBarzilai2k
    @MrBarzilai2k 5 ปีที่แล้ว

    Greeting from Israel!
    Thanks a lot . Extremely instructive.

  • @isaacaltice1836
    @isaacaltice1836 7 ปีที่แล้ว +2

    your videos are a huge help, thank you

  • @nunezmanuelivandasaev1172
    @nunezmanuelivandasaev1172 3 ปีที่แล้ว +2

    you helped me a lot! Thank you!

  • @austin.eikermann
    @austin.eikermann 6 ปีที่แล้ว +1

    This guy is the 🐐

  • @HeineSchiller1999
    @HeineSchiller1999 8 ปีที่แล้ว

    you have literally saved my life

  • @ragd460
    @ragd460 7 ปีที่แล้ว +1

    Great explanation.thank you so much

  • @thegdt37
    @thegdt37 5 ปีที่แล้ว +2

    In the movie Limitless, there is a quote "I suddenly know everything about everything" after the main character takes the pill. You indeed know everything about everything...

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว +2

      Far from it, but I try to learn something new every day. :)

  • @shawnmuench
    @shawnmuench 2 ปีที่แล้ว +1

    Alright I think I've confirmed that picking IT as a second career was a better fit for me. This is so anal and you're doing an amazing job! Thanks for the vids. (I know 'thanks' doesn't mean much.)

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +2

      In today's world IT is an excellent career to get into. We just can't find enough people with that skill set. All the best. (Your "thank you" is very much appreciated).

    • @shawnmuench
      @shawnmuench 2 ปีที่แล้ว

      @@MichelvanBiezen Wonderful encouragement!

  • @parthpatel6498
    @parthpatel6498 9 ปีที่แล้ว

    super bro !!
    Now I will Pass in my Viva Exam !!
    tnx.

  • @童乙
    @童乙 8 ปีที่แล้ว

    You're so patient and helpful!

  • @suzu_mio3563
    @suzu_mio3563 9 ปีที่แล้ว +1

    4:30 I really thought he would say "now that I realized that I forgot my calculator, I'M GOING TO ANSWER IT MANUALLY" hahahaha that would be sick xD
    anyways great videos I learned a lot hahaha

  • @bikinibodydanceJA
    @bikinibodydanceJA 10 ปีที่แล้ว

    Great Videos!! simple+straight to the point

  • @hcam93
    @hcam93 6 ปีที่แล้ว +1

    Could you make a video for the following problem:
    A uniformly charged Q/C rod of length L and total S charge Q lies along the x axis as shown in Figure P23.42. (a) Find the com- ponents of the electric field at the point P on the y axis a distance d from the origin. The image shows a point P which is on the end of the rod where x = 0.

    • @MichelvanBiezen
      @MichelvanBiezen  6 ปีที่แล้ว +1

      I believe we already have a similar problem in the playlist.

    • @MichelvanBiezen
      @MichelvanBiezen  6 ปีที่แล้ว +1

      Here is a similar problem. (but with the electric field)

  • @mikeg6854
    @mikeg6854 5 ปีที่แล้ว +1

    Can we say that the suppost minus (-) in the Force final expression relates to the atraction of the charges?

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว +1

      I would not rely on a "negative" sign to determine the direction, but determine the direction of force for each pair of charges.

  • @bebarshossny5766
    @bebarshossny5766 5 ปีที่แล้ว

    4:33
    I absolutely love this man 🤣🤣

  • @woghd4390
    @woghd4390 8 ปีที่แล้ว

    thanks for the simple teaching of u

  • @Chan-ux7ej
    @Chan-ux7ej 5 ปีที่แล้ว +1

    Hello Michael van Biezen, I noticed that you have quite a few playlists for physics E&M, and I was wondering in what way they varied from one another. I am taking physics 2 my following semester in uni, and I was wondering if just using one of your playlists would suffice, or if every playlist are viable for studying/learning the material.

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว +1

      If you are taking the second semester of a 2-semester physics series than playlists Physics 34 through Physics 65 are applicable to your studies next semester.

  • @lizethvargas6577
    @lizethvargas6577 7 ปีที่แล้ว +1

    Build a distribution of point loads along the
    That far from them their electric field along the axis varies by 1 / r6. Electromagnetic physics, please help me with this question, thank you

  • @EISSA7495
    @EISSA7495 10 ปีที่แล้ว

    You helped me a lot understanding physics 2

  • @anum6391
    @anum6391 5 ปีที่แล้ว +1

    Thank you very much 👏🏻👏🏻

  • @nataliapaz
    @nataliapaz 7 ปีที่แล้ว +1

    Thank you, I really like your videos...way better than my teachers. Why don't you accept subtitle contributors? I would love to add spanish subtitles so I could share your videos with my classmates.

  • @fertilizin7935
    @fertilizin7935 6 ปีที่แล้ว +1

    you're a life saver

  • @chethans5908
    @chethans5908 7 ปีที่แล้ว +1

    sir, please upload basics of electricity and magnetism

    • @MichelvanBiezen
      @MichelvanBiezen  7 ปีที่แล้ว +2

      There are hundreds of videos on E&M You can find them from the home page.

  • @WonderWorldChronicles92
    @WonderWorldChronicles92 10 หลายเดือนก่อน +1

    hello can I use your video for my online class as a reference.

    • @MichelvanBiezen
      @MichelvanBiezen  10 หลายเดือนก่อน +1

      Certainly. (as long as source is indicated).

    • @WonderWorldChronicles92
      @WonderWorldChronicles92 10 หลายเดือนก่อน +1

      @@MichelvanBiezen thanks a lot I actually love your lessons.

    • @MichelvanBiezen
      @MichelvanBiezen  10 หลายเดือนก่อน +1

      Thank you for using them. (Glad you like them).

  • @4pharaoh
    @4pharaoh 6 ปีที่แล้ว +1

    Love your work, very easy to listen to. Thank you. But I have a question.
    I have read that the absolute |magnitude| of K is EXACTLY 8987551787. 3681764 Nm^2/C^2 which is EXACTLY |c^2|/10,000,000 [299292458 m/s]E2 =89875517873681764. It cannot be a coincidence that every significant digit is the same (a billion- billion to one odds]. I have yet to find anywhere that describes this coincidence, any insight? Anyone? anyone?

    • @MichelvanBiezen
      @MichelvanBiezen  6 ปีที่แล้ว

      There is definitely a connection. Maxwell discovered that c = 1 / sqrt( epsilon x mu) = 1 / sqrt (permittivity of free space x permeability of free space)

  • @shivgujjar4030
    @shivgujjar4030 7 ปีที่แล้ว +1

    thank you very much sir

  • @sizwembokazi8725
    @sizwembokazi8725 9 ปีที่แล้ว +1

    Always interesting!!!

  • @zakidev
    @zakidev 7 ปีที่แล้ว +1

    hallo sir, please make a video about conservation of charge

  • @787310
    @787310 7 ปีที่แล้ว +31

    i love you so much dude no homo

    • @lia1349
      @lia1349 7 ปีที่แล้ว

      Richard Gluten

  • @ntwohiu0252
    @ntwohiu0252 4 ปีที่แล้ว +4

    After you getting the calculator, your voices sounds very exhausted

  • @radimollov4562
    @radimollov4562 2 ปีที่แล้ว +1

    Professor, I am right in the beginning of my "Electricity and Magnetism" journey, so I was wondering if You are able to link a video in order for me to start from somewhere so I can understand everything important. Thanks in advance.

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +1

      Since you wrote the comment on chapter 35 "Coulomb's law" you are at the right place. We have several dozen playlists on E&M and they cover the topic in the order it is recommended. Have you found the organization of the playlists using the home page?

    • @radimollov4562
      @radimollov4562 2 ปีที่แล้ว +1

      @@MichelvanBiezen Well, I first searched up on your website where all the lessons are organized but I really thought that I would be missing something. That's the main reason why I asked You to send some link in order for me to take the right lessons in the right order :).

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +1

      Starting on chapter 35 is the correct place. Physics 35 Coulomb's Law (1 of 8) th-cam.com/video/-jxX7Vt2wrA/w-d-xo.html

  • @tongchutee157
    @tongchutee157 9 ปีที่แล้ว

    do you hv any videos on explaining the flow of current in a transistor or diode? thank you so much

    • @MichelvanBiezen
      @MichelvanBiezen  9 ปีที่แล้ว

      +tong chu tee
      Not yet. I am starting a video series on electrical engineering, and those topics will be part of it.

    • @tongchutee157
      @tongchutee157 9 ปีที่แล้ว

      Michel van Biezen oo okay hope to be able to watch it soon~

  • @animeshtalapatra9558
    @animeshtalapatra9558 6 ปีที่แล้ว +1

    Hello, sir your videos are very helpful. I have a problem in this chapter....we know that the value of epsilon0
    is 1 in CGS,then how we conclude that K=1 ?

    • @MichelvanBiezen
      @MichelvanBiezen  6 ปีที่แล้ว +1

      no, the value of epsilon 0 is not 1 (in cgs units). It is 8.85 x 10^-12 in mks units

    • @animeshtalapatra9558
      @animeshtalapatra9558 6 ปีที่แล้ว +1

      +Michel van Biezen you cleared up the matter...I mistook it .Thank you very much.

  • @mrbriansu
    @mrbriansu 3 ปีที่แล้ว +1

    the law of action and reaction 😀

  • @Stat1onary
    @Stat1onary 5 ปีที่แล้ว

    AAAAAAAAAA I really wish these videos had sound in both channels because theyre so perfect otherwise!

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว

      Yes, our older videos were recorded in mono (not stereo) until we figured out what we were doing.

  • @Hunter13166
    @Hunter13166 ปีที่แล้ว

    Hello, may I ask a question? Does F2 = -0.054N = 0.054N at 180 degrees? or is there still a negative there?

    • @MichelvanBiezen
      @MichelvanBiezen  ปีที่แล้ว +1

      The sign, be it positive or negative, ONLY is there for the direction of the force and has no further meaning. FIrst we calculate the magnitude of the force (ignoring signs) and then we add the sign to depict the direction of the force. Therefore, the force on the negative charge will be to the left (add negative) and the force on the positive charge will be to the right (add positive). (The magnitude will be the same for both)

  • @MikkoHaavisto1
    @MikkoHaavisto1 10 ปีที่แล้ว

    very nicx lessons, thanks!

  • @ayushhongkong
    @ayushhongkong 8 หลายเดือนก่อน +1

    the charge was given as 6, where did the x10^-6 come from?

    • @MichelvanBiezen
      @MichelvanBiezen  8 หลายเดือนก่อน +1

      The charge was given in microcoulombs

  • @TheLychie
    @TheLychie 9 ปีที่แล้ว +1

    When plugging in for F1, where did (6.0x10^-6) come from? Particularly the part where it says x10^-6

    • @MichelvanBiezen
      @MichelvanBiezen  9 ปีที่แล้ว +1

      TheLychie
      The charges are in micro coulombs (the Greek letter mu means micro = 10^ -6)

  • @1fenash
    @1fenash 10 ปีที่แล้ว

    Hi, since the second charge is negative why its on the right side of the x axes?

    • @MichelvanBiezen
      @MichelvanBiezen  10 ปีที่แล้ว

      fenash1,
      The units for the x-axis and y-axis are m (meters). They represent position. The charge (negative or positive) is independent of their position and thus a negative charge can be located on the positive side of the x-axis and a positive charge can be located on the negative side of the x-axis.

    • @1fenash
      @1fenash 10 ปีที่แล้ว

      So, are you saying we can locate them randomly as long as we keep track of the charge sign?

    • @MichelvanBiezen
      @MichelvanBiezen  10 ปีที่แล้ว

      fenash1
      Charges can be placed anywhere with NO restrictions.

  • @salmanturkiyede7557
    @salmanturkiyede7557 2 ปีที่แล้ว +1

    Hello teacher, could you tell me why ^-6 in both 6.0 and 4.0?

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +1

      6 micro coulombs = (6/1,000,000) coulombs = 6 x 10^-6 C

    • @salmanturkiyede7557
      @salmanturkiyede7557 2 ปีที่แล้ว +1

      @@MichelvanBiezen which means constant

  • @muhammadusmantv3147
    @muhammadusmantv3147 7 ปีที่แล้ว +1

    thank you sir

  • @ajathreya5005
    @ajathreya5005 7 ปีที่แล้ว +1

    Sir how can we address force between two charges when separation r=0 ?? really is it infinity ??

    • @MichelvanBiezen
      @MichelvanBiezen  7 ปีที่แล้ว +4

      We can never have zero distance between two charges since they take up space.

    • @ajathreya5005
      @ajathreya5005 7 ปีที่แล้ว

      thank you sir.

  • @rsdummyacc3129
    @rsdummyacc3129 8 ปีที่แล้ว +20

    my right ear feels sad

    • @MichelvanBiezen
      @MichelvanBiezen  8 ปีที่แล้ว +10

      Yes, the old videos were not recorded in stereo. (We corrected that with the newer videos). We had a lot to learn about TH-cam.

    • @sizzlinsj8135
      @sizzlinsj8135 7 ปีที่แล้ว +2

      I interchanged my headphones every minute

    • @alexeycherepanov7943
      @alexeycherepanov7943 4 ปีที่แล้ว

      @@MichelvanBiezen What Charles Coulomb actually did -
      drive.google.com/file/d/1rAkRKb9lvAfyQdRz8mMNii9iSXAwlzN2/view?usp=sharing
      What Charles Coulomb actually did - cloud.mail.ru/public/3t7j/3v4Aj5Tqc

  • @aryoseno11
    @aryoseno11 8 ปีที่แล้ว

    God bless you sir..

  • @heartdoc922
    @heartdoc922 8 ปีที่แล้ว +2

    why am I finding this a day before my test! =(

  • @taneshajohnson9898
    @taneshajohnson9898 7 ปีที่แล้ว +1

    THANK YOU SOOOOO MUCH

  • @roulatraboulsi
    @roulatraboulsi 7 ปีที่แล้ว +1

    ledge

  • @shrirangsapate
    @shrirangsapate 7 ปีที่แล้ว

    what is the force exerted by infinitely long wire on a test charge?

    • @MichelvanBiezen
      @MichelvanBiezen  7 ปีที่แล้ว +1

      That is a good question. The approach will be the same as finding the electric field due to an infinite long wire of charge. (We'll have to make a video on that).

    • @shrirangsapate
      @shrirangsapate 7 ปีที่แล้ว

      Michel van Biezen Ok I got that but can this electric field can be written in terms of charge instead of charge density?

    • @shrirangsapate
      @shrirangsapate 7 ปีที่แล้ว

      Can we talk on mail, I'll email you the exact question for which I'm looking

    • @shrirangsapate
      @shrirangsapate 7 ปีที่แล้ว

      My mail id is shrirang.sapate20@gmail.com

  • @emresarac2100
    @emresarac2100 2 ปีที่แล้ว +1

    My left ear's been educated so well lol

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +1

      Yes, our older videos were recorded in mono sound, before we figured out what we were doing.

    • @emresarac2100
      @emresarac2100 2 ปีที่แล้ว +1

      @@MichelvanBiezen That's not a problem, still one of the best videos

  • @bios546
    @bios546 9 ปีที่แล้ว +1

    Q1 and Q2 are scalars... R^2 becomes a scalar, so is k a vector?

    • @MichelvanBiezen
      @MichelvanBiezen  9 ปีที่แล้ว +1

      ess kp
      No,k is just a constant.
      Notice that a vector has magnitude and direction
      So the force has a magnitude and acts in a certain direction.
      The definition of the electric field: E(vector) = F(vector) experienced by a test charge divided by the magnitude of that test charge.

    • @bios546
      @bios546 9 ปีที่แล้ว +1

      Michel van Biezen u-huh... true true. So, over all the expression of F(sub)e will be a vector... acting in the direction of the unit vector joining the two particles under consideration... right?

    • @MichelvanBiezen
      @MichelvanBiezen  9 ปีที่แล้ว +1

      ess kp
      The direction depends on whether or not the particles repel each other or attract each other.

    • @bios546
      @bios546 9 ปีที่แล้ว +1

      Michel van Biezen Ok I understand. But, I heard that k = 9e9 Nm^2/C^2 only holds good in a vacuum.
      So, here is a new question...
      How does it depend on the medium, I know about k=1/(4*pi*(epsilon))... but, what kind of medium makes the electrostatic force high and vice-versa?

    • @MichelvanBiezen
      @MichelvanBiezen  9 ปีที่แล้ว +1

      ess kp
      k is the largest in a vacuum (free space)
      k is smaller in all other substances

  • @laithoonjo5599
    @laithoonjo5599 9 ปีที่แล้ว

    Thank you dude knowledge for all the world
    ?
    i Wonder whats name of this Book Physics 2 Please/

    • @Peter_1986
      @Peter_1986 8 ปีที่แล้ว

      +LaithooN JO
      I am not sure what book he is using for these videos, but some of his problems have looked very similar to problems in the book "University Physics With Modern Physics".
      I can actually highly recommend that book, it's great and has a very relaxed and reader-friendly style, and the chapters are in a very intuitive order.
      Try and get your hands on the 13:th or 14:th edition if at all possible.

    • @laithoonjo5599
      @laithoonjo5599 8 ปีที่แล้ว

      Owh well!
      Thank you Man!

  • @Kidertainment
    @Kidertainment 5 ปีที่แล้ว

    M. vB is the MVP.

  • @killuazoldyck1223
    @killuazoldyck1223 7 ปีที่แล้ว

    Thank you so much

  • @nadhrahzulkifli8238
    @nadhrahzulkifli8238 9 ปีที่แล้ว

    sir , i don't know but starting from this video until physics - gauss law 3 of 11 spherical charge . (the sound) doesn't come out when i plugged in my earphone.But in other videos in utube , my earphone is working fine and i can hear the sound ...is there anything problem and is there any other way so that i can hear ur voice because the subtitle given is a bit weird for me . :)

    • @MichelvanBiezen
      @MichelvanBiezen  9 ปีที่แล้ว

      +Nadhrah Zulkifli We had some problems with the sound on our earlier videos as we were learning how to put videos on TH-cam. We have solved our problems on the new videos.

  • @ianloveservice
    @ianloveservice 6 ปีที่แล้ว

    Proffesor. Do I need to study also Physics in electrical engineering or its okay to pass on it.

    • @MichelvanBiezen
      @MichelvanBiezen  6 ปีที่แล้ว

      A strong background in physics will be VERY helpful.