Electric Charge and Electric Fields
ฝัง
- เผยแพร่เมื่อ 10 เม.ย. 2017
- What's the deal with electricity? Benjamin Franklin flies a kite one day and then all of a sudden you can charge your phone? There's a gap in conceptual understanding! Let's figure out what electricity is, exactly, and how it works, by defining electric charge and electric fields.
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Me watching Professor Dave:
In High school - "This guy is going over kid stuff, my syllabus is above this" *Clicks away*
In University - "Whaat? I did not know that. Did he just summarize 3 lectures worth of material in less than 10 mins??"
Really?
Do you want advance concepts
this actually me
XD
My professor took two hours and I don't understand a thing I watched 10 minutes of professor Dave and it's all clear now
facts
thank you physics jesus
lmao
😂❤ ahh hahaha 🤣 hehehehe tickled me
@@etherealbladerx8153 you what
@@etherealbladerx8153 thats kinky 😦
@@chr0nically_onl1ne it was funny 😆 lol
Professor Dave explained this 2-week topic in less than 10minutes. Bravo!!
It was for children,....
Yet I'm still here😭@@LogosInsula
Get lost he still taught everything that was needed@LogosInsula
A big topic in a nutshell
In a nutsack
Kurzgesagt
I was having such a hard time grasping the concept of electric charges and electric fields, but you cleared it up so nicely, thank you so much Dave!!
Each school should have such a physics teacher like you!!
I love how you explain these concepts. I have no idea what i am looking at when i see the formulas, but i understand how and why things work the way they do. You have a very good approach that should be appealing to the average person. I certainly learned quite a few things . Keep up the good work and good luck.
He left a cliff hanger. He didn't explain electric potential :(
Lol I understand the formulas, plug and chug. And I thought it was interesting how he mentioned it was similar to Newton's law of gravity which I noticed a while ago and drew a parallel to the weakness of the force compared to the kolumn law.
@@spacejunky4380 ok
❤❤😊
Your videos are really good sir. Really helped me understand the concept. Most other videos are just repeating definitions shown in textbooks.
Really needed this , perfect timing . Thanks professor
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Very clear and helpful. Thank you.
I love the comprehension part! t hank you for taking the time to make these beautiful videos
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Thank you so much I love what you are doing with the channel!
I found it excellent for my grade 10 student daughters. Be blessed Professor.
MY FAVORITE PROFESSOR! This guy literally just explained a three-day lecture in a 6:40 video. TT
That was well explained Dave & I understood it immediately ..the bit after "professor Dave again" was the hard part.
that "checking comprehension" music was priceless
Your videos go straight to the point and always carry me through exams. Appreciate everything!
great tutorial...
You've just helped me with the Presentation task I had to do this week
I was having a really bad day.. till the opening kicked in!
This is probably the best video I've seen on the subject. Job well done.
Your videos are LITERALLY the best.
Amazing reading skill 👏🏻❤
Now all of this concept are cristal clear to me , thank professor Dave ...
I have a question. Can you determine the force between two charges with their relative charges, I mean like +1,-2 and so on? Or do we always have to use 1.6×10^-19?
you're the best. you explain in not how you understand but for how the viewers will understand
Professor Dave ,I am an Indian and an IIT (Indian Institute of Technology, aspirant.There are two competitive exams one have to write to get a seat in prestigious IIT colleges.I checked all the viedeos in your channel.All the videos are related to IIT portions.I am really gonna tell all my friends who are also IIT aspirants. Thanks a lot professor Dave.All the concepts are beautifully explained.Keep going your doing great.
Thanks a lot professor.Have a nice day.☺
awesome, glad to be of help! please tell all your friends to subscribe :)
Sure ,professor.I will tell all my friends to watch your video and subscribe.Thanks a lot.Have a nice day.🙂
Hari kalatheeswaran iin
For the checking comprehension exercise at the end, shouldn’t the force be negative because it’s between two protons and they’re both positively charged? Love the video by the way! It was helpful.
the q terms include the sign, protons are positive so it's net positive!
For electrostatic forces positive forces are pushing and negative forces are pulling, so the positive force has them pushing each other away. If it was negative then they would pull each other together. (Yes it's a little confusing that gravity doesn't do it that way)
Omg bless you!! You have made me understand more in this video than 4 weeks of my physics 102 professors
Same here! 😄
Wonderful tutorial
Pretty clear
Thank you sir ♥️
very clear. Thank you
thanks man...that was helpful!
luv your explanation
Love your intro dude i been laughing so hard for the past hour
your one idea helped maade my Masters thesis doonee, bossss
Ranbir kapoor is that you?
Funny that you are a Kapoor as well
hello Prof
Did you make any video about the relation between the time-varying electric field and the time-varying magnetic field?
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Thanks Professor Dave!
Most productive 6 minutes before an exam I have ever spent thanks to Professor Dave!
Omg I wish the other chapters were this easy
you always teach the most basics of a topic which makes it so easy to understand thank u
😅😅
Wow stuff I had never learned before.
thank you so much
Man explains bad teachers' hours of letcure in literally 5 mins!
Awesome 👍
Thank you!!❤❤❤❤
Question: Is the General Chem and Organic Chem all the videos you have for chemistry? Thank you..keep up the amazing work. Love your short and to the point videos!
i also have an organic chemistry practice problems series, a little extra review! and i have a few more general chemistry saved up that i'll slowly release. but otherwise focusing on other subjects!
Thank you! Stay awesome
I cannot believe this man just taught a whole week worth of my syllabus in barely 10 minutes
I am simply happy I found this channel
I got a quick revision, thx sir
And love from india
Is it on the cbse curriculum?
Amazing video dude ❤❤🎉🎉
Your teaching is very useful to me sir
thanks professor dave
very well explained, damn.
very nice, this is what i need.
Keep making quality content prof
Thank you very much
thanks very much for this video, i hope you go forward
Thank you so much, we are really helped. Your tutorials really helps may God continue blessing you Professor Dave 🙏
Best comprehension ever I seen.
#DefinationsForStudents
Thanks!
Very helpful video
excellent, thank you
thank you dave much love brother man
Balloony science! Nice one!
Sir can you please explain why an insulator can freely give away its electron just by physical rubbing. Is it not related to ionisation energy? If so, should it not be difficult to displace electron from the stable covalently bonded species.
Thank you professor
Nice lecture
Wo ai ni, PROF. DAVE!
Really great tutorial. Thanx sir
Great
Thanks professor dave.
Sir, your classes are awesome and it helps me a as I'm preparing for my class 12 th final board examination. Thank you a lot and all my friends are watching your video and I'm from Kerala (INDIA).
So how did your exam go? Are you still studying?
@@Maxbronx4122 I'm a medical student now
@@abhijithmenon2513 woah that's great
@@abhijithmenon2513 congrats man, good luck
Thnx Professor Dave,once again u saved my life 💙🙏
Thank you so much
Wait, is the electric field independent of particles? Or only around at point charges/particles?
this is literally all of what i learned in a physics class in a month bruh.
this is helping me a lot!!!!!!
Best explanation
I studied everything in my clg
This like a revision tq
gotta love dave
Than you!!
Nice thank u so much.
bruh you just posted helpfull stuff you are gonna gain subscriber
Thanks a lot
Thanks professor
Professor Dave, what determines which of the 2 objects will be positively or negatively charged when rubbed together? eg balloon vs jumper
hello john: this is a good question.
in video professor dave states: "all materials start in neutral state" (this is true ....mostly) some materials are more "radioactive" than others.
what I think is happening is "materials" (lets stick with balloon-hair friction experiment) have different electrical "tendencies".
hair of course is different structure to balloon.
both materials are moving during "friction-event"
professor dave states: "electric charge is displaced by rubbing these materials" (balloon hair)
"displaced" means one thing now occupies location of previous thing. (this is not helpful)....
what are these things?
where are these locations?
which thing is "displaced" by next thing?
friction is actually a kinetic event. (because all material objects possess transferable energy). in some cases, this energy can be transferred easily. in others, energy cannot be released easily.
professor dave is defining this energy release (here) as electron flow. (i think the electrons are gaining a negative charge during friction event). this is a guess. we cannot see electrons gaining a charge.... (if anyone gets this far, and says... sure we can see electrons gaining a charge, please let me know- i would be very interested in this data).
(some electrical engineers question whether an electron actually exists). this is confusing. tesla called electron an electrostatic "shell". so...shells of force are being created during friction event (maybe). tesla tended to be very advanced in his understandings of electrical principles.
we detect this shell-force as "electricity" - a flow of negatively charged electrons wants to go somewhere... where? maybe back to a neutral state... unless material remains radioactive (so some materials retain charge, some dissipate charge).
peace: thanks for reading.
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Hey Professor Dave, I can't help but notice, what is that tattoo of because it looks pretty dope!
Keep up the good work your getting me through grade 12 physics in the land down under, Australia!
i get this question so much that i made a video about it! check out "ask professor dave #3".
Thank you sir
Thank u sir
Sir it was a vey great video
But i wanted to ask one question
That why always electric field lines are directed outwards for positive charge and inwards for a negative charge?
Sania Zehra it's only a convention
electric field lines are imaginary hypothetical lines which tells the magnitude and direction of electric field intensity at any point.
Force is a vector and it has direction. The direction of force in the field is indicated.
good explaining
wish yo more successes
hi prof . dave ,what is the similarity between electrostatic discharge and electric current.Are they the same phenomenon?
Prof, if two object get rubbed by friction on each other, how do we know the charge each object will carry (positive and negative) after transfer of charges.
It is determined by the Triboelectric series!!
two words: triboelectric series. if you perhaps dunno what it is, its a list of random things arranged in such a way that the substances which can easily lose an electron and become positively charged, are placed at the top of the series, while the ones that easily accept an electron are placed in the bottom of the series.
Hi Professor Dave,
Your explanation very outstanding.
I want to ask one question that is;
IS POSSIBLE TO GENERATE ELECTRICITY IN THE WATER THROUGH THE ELECTRIC FIELDS GENERATED BY THE FISHES ?
living organisms don't generate electric fields of any significance!
According to my information through some reliable resources there are fishes which generate electric field in order to find their prey, path etc. These fishes are called ELECTROGENSIS
oh yeah? interesting. the ocean has a fair amount of ions in solution, so i guess it's possible for a field to be sustained to some degree. crazy stuff!
Can you help me in referring some resources concerning the development of an ELEMENT responsible for converting the ocean's ions energy into electricity ( even in mircovolts). I will be grateful if you sort out something.
well if you mean a literal chemical element, that's not going to work, but beyond that ions themselves don't generate electricity, they just conduct electricity in solution. it is simply that electricity can propagate through electrolytic solution. so there is nothing to convert that i'm aware of. but snoop around, you never know!
What will be the line of two negative charges?
Thanks for making those videos!
first of all real thanx sir for replying... so the clearcut statement wud be that ""shielding effect remains same from left to right across the period""... hope I got it right..
The only teacher that stands still whilst teaching, thank you so much
Great work. I like how you explain
how does the electric potential change along the direction of the net electric field? Can you answer that please? I m confused.