CBSE 2025 PHYSICS | Electrostatic Potential & Capacitance in one shot | Class 12 Physics |Sachin sir
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- เผยแพร่เมื่อ 11 ก.ย. 2024
- CBSE 2024 PHYSICS | Electrostatic Potential & Capacitance in one shot | Class 12 Physics |Sachin sir
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Baccha party yee Baba SSP ka Dil se padhaayaa hua video hai is video ko dekhne ke baad aapka pura NCERT chapter number 1 finish ho jaega aap kisi bhi board ke student Hain yah video dekhne ke baad aapko physics se pyar Ho jaega aage ke chapters & NCERT solution ke liye play list ko jarur follow Karen :-th-cam.com/play/PLCWm8jBxm8LJxjn5oX7ZXB7OmdYi2ZWCC.html
bachha party handwritten notes ke liye join our TELEGRAM group :- telegram.me/sachinsirphysics
Sir notes nahi hai telegram par
Kaha milege bata do
Sir workdone by the external field is positive or negative thn y do we consider minus q in ext
Sir aawaz kam aa rahi hai please speak louder
12:00
Sir in introduction part the negative sign in the formula of workdone can be explained by one other concept also which is
The external force which we are applying should be equal and opposite to the electric force applied by the source charge and we can write (F)ext. = - (F)electric
So when we are putting the value of of ext. force then we use this.
And the displacement is in the opposite direction of electric force and in the direction of ext. force then angle between ext. force and displacement is 0° and cos0° =1 ; angle between displacement and electric force is 180° and cos180° = -1
So the work done by electric force is negative and by external force is positive due to angle between displacement and forces and that can be a reason of the negative sign in formula of work done
dW= (F)electric ×dr× cos180°
dW = -(F)electric×dr
dW = (F)ext. ×dr ×cos0°
dW = (F)ext. ×dr
Sir is this correct concept that the angle between forces and displacement is the reason for negative sign in formula of work done. Displacement is in opposite direction of electric field or force..
Sir please reply....🙏🙏🙏🙏
Clear my doubt...🙏🙏🔥❤️
2:00 Introduction
22:30 Electrostatic potential
27:00 Example-1
29:44 Potential Deu To An Electric Dipole
41:55 Potential Due to A System of charge
43:39 Example-2
49:50 Ex-3
56:02 Equipotential Surfaces
1:09:23 Potential energy of system of change
1:18:30 Ex-4
1:23:56 P. E In External Field
1:30:30 Ex-5
1:37:29 Ex-6
1:40:00 Electrostatics of conductor
1:54:00 Ex-7
1:57:38 Dielectrics and Polarisation
2:09:39 Capacitor and Capacitance
2:23:00 The parallel plate capacitor
2:27:29 Effect of Dielectric on capacitance
2:39:20 Ex-8
2:41:30 Combination of capacitors
2:44:47 Ex-9
2:47:39 E. S in capacitor
2:48:15 Ex-10
Thnx dude... Helped a lot 🤝
Shukriy bhai
Thanks bro
Thanks❤❤ bro
Thanku bro ❤
He is far better than pw and any other academy he knows that what students exactly need
❤
PW❤
@@ashishrathore5887idhar kya karne aye ho bhai fir ? 🤨
@@RahulSharma-gv3ng pyqs dhood rha tha jee level ke iss chapter ke 😌
Koi dikkat hai kya
@@ashishrathore5887 bhai par ye theory Lecture h ,isme questions nhi h ye boards k liye usefull h , not for jee ,vse mujhe koi dikkat nhi ,, ese hi pucha 👍
12:00
Sir in introduction part the negative sign in the formula of workdone can be explained by one other concept also which is
The external force which we are applying should be equal and opposite to the electric force applied by the source charge and we can write (F)ext. = - (F)electric
So when we are putting the value of of ext. force then we use this.
And the displacement is in the opposite direction of electric force and in the direction of ext. force then angle between ext. force and displacement is 0° and cos0° =1 ; angle between displacement and electric force is 180° and cos180° = -1
So the work done by electric force is negative and by external force is positive due to angle between displacement and forces and that can be a reason of the negative sign in formula of work done
dW= (F)electric ×dr× cos180°
dW = -(F)electric×dr
dW = (F)ext. ×dr ×cos0°
dW = (F)ext. ×dr
Sir is this correct concept that the angle between forces and displacement is the reason for negative sign in formula of work done. Displacement is in opposite direction of electric field or force..
Sir please reply....🙏🙏🙏🙏
Clear my doubt...🙏🙏🔥❤️🔥
Yes you are correct bro 😊
Yeah this concept is in ncert
Answer for question (. D .)
This is why happened because electric wire contain +ve and -ve charge on different wires and when a bird sit on one wire. It does not get any current because no +ve and -ve charges are in contact but when a bat sits on a electric wire due to his large wings his wings get in contact of both +veand -ve chages
Hence he got current
How politely and softly he speaks ❤
... Makes the concept clear even in just 1 vedio
thnk you bachha
@@sachinsirphysics ❤️❤️
I usually dont comment on yt videos but sir you are a legit life saver... This chap went above my mind when it was being studied in my institute, i thought i had bad concentration but sirr the way you are teaching is just epic🙏🙏🙏🙏thank you so much sir. You really made physics intresting
really
yes this video helped me a lot@@user-iz7nx7dh4y
Sir aap accha padhate Hai par yeh baar baar bolna and coachings ki burai karna aapko shobha nhi deta please teaching pe focus kare naki comparison to others
THAT WAS UNEXPECTED WHEN YOU TOLD AT 8:46 , My teacher told me only because of charge against attraction but you just opened my mind. I did'nt even thought that . We all so lucky to have a free cost teacher like you .If I ever crack neet or jee , I will definitely praise you.
And Ur lectures are enough for any exam.
Ye lecture raat ke 2 30 ko start kiya tha abhi 5 30am hogya beech me thora break liya tha me aisa baccha hu jo aaj tak kisi bhi vid me comment nhi kiya
Lekin this vid made me to do this
Guyss this is fantastic mere 7 days baad boards hai itne acche se isme sir ne samjhaya mera 1 hr baaki haj karna lekin wo ab subha karenge as jyada raat hogya hai approx 5 30 mrng ma hogaya hai
Lekin mujhe vid pause karne ka man nhi kar raha
Sach me sir you made me fall in love with physics once again
sir, in example 2.2 when we take the point to the right of the negative charge, I am getting positive value, i.e. 30cm and 45 cm, I don't understand how we got x-15 in textbook
Really grateful for this video. Thank you sir for this amazing explanation 😊🙏🏻🧿
I don't need a back up class of 1 week to do this chapter. 5 hours (2 hours extra for pausing and practicing the given numericals. can make the concepts clear. one can make it crystal clear after doing 100 PYQs of this chapter!!) chapter can be mastered in 2 days. and If one has backlog of 5 chapters in physics, he can clear the backlog in just 1 month !!!
.
One can cover up 2 months backlog in 1 month.
.
A great strategy will be. give 5-6 hours daily on sir's videos. complete 2 hours for each subject daily. and after 4-6 months, you will have completed the syllabus and should start practicing questions. at last when everything is mastered. just be regular in studies and schools after that. no need to be stressed!!
Ye bahoot achhi bat kahi apne
An electric dipole is formed by +4μC and -4μC charges at 5 mm distance. Calculate the dipole moment and give its direction
In introduction we derived that W=q[Vfinal-Vinitial] but later on in potential energy of a system of charges we got W=Vfinal-Vinitial...can anyone explain why??
46:18 Sir aap ne kaha tha ki potential mein charges ka sign bhi rakhna hai tho fir aapne -ve sigh kyu nahi rakha 2ke saath
Exectly..-30 ayegaa
21:10 correct me if i'm wrong please but sir agar charge p se infinity ke side jayega toh Work done by conservative force from p to infinity hona chahiye but aapne from infinity to p likha hai important point me, toh kya wo sahi hai aur agar hai toh kyu?
Just wanna say thnkeww from bottom of my heart ! I was studying this CHP since last month from other videos . but today got the real concepts ! GBU sir ♥️
Sir app NUMERICALS karwate time plz questions ko akk bar samjha dehiye😢😢😢😢😢😢😢
This person is really awesome and super best no one is like our sachin sir he is one man army proud to be an sspian ❤❤❤❤❤
Sir telegram pe es chapter ke notes nahi hai😢😢
At 2:21:28 ans is 1st capacitor because capacitor is inversly proportional to potential. If potential is less means enery to provide charge will be less then it will leads to increase in capacitance which makes the good caacitor.
Literally i found a best physics teacher of my batch 2023-24 , thank you Sachin sir
Your video will help me to know a lot of concepts 🥰.
always there for all my bachha log
Did he do all the derivations ( exclusive of deleted portion)
@@sachinsirphysicssir Mai Isko apne UT Ke Liye Padh sakta Hun???
@@preetibohra2832 yes, he did most of the derivations which are SUUPER imp. its best to cover up portions last minute- and to practice aswell...
he also gave a full derivations video i think it was last year. but it is still relevant
sir aap acha padhate h par bich bich main plzz dusre teachers,coaching ki burai krna bnd kriye ki glt padha dete h its really irritating..the only thing is sir that sb apne apne tariko se padhate h...btw thnkuuuu for such a help with ncert solns....no doubts u make us fall in love with physics....u r tooooo good
The one shot which covers each and every topic with much patience heads off sir ❤
@@user-hh8bn3xj2chi
arey wow, hey madam gauri, tum hi ho kya😅, my cute close friend is gauri actually.
47:30 , x negative kaise aarha hai? 3x=30+2x => x=30 , if i am wrong please explain it to me
it is correct but we always try to take the shorter distance
Doubt 📌
9:11 pe aapne final position r aur initial ♾️ Li prr 15:46 pr ulta liya h.. so which one is right??
Ig sir se ghalti ho gayi hogi, the first one is correct👍
i regret so much that i came across your channel only 2 months before boards
agar starting m hi koi bata deta aapke baare m toh itna struggle aur frustration nahi jhelna padta
Bhai jo sir padha rahe bhoot mst padha rhe h sab samj ata h per ye bach se board ma 90 ban jauege kyu ki yahi ek channel h jo mst se samjhete h h or meko samj ata h koi problem to nhi na ??
The way he teaches............🤌🫀jst felt for the first time I understood physics😭😭
All teachers are god
Jo teachers ka comparison krta hai usse bda murkh koi ho hi nhi skta hai
Ans of 2.7 last question.
As pd difference is same if birds both legs on same wire. So no current.
But if both legs on different wires then pd difference not same so will experience current and bird will die
9:11 to 9:27 me sir jo bol rahe hain ye suno
Aur
21:06 to 21:14 yahan sir jo bol rahe hain ye suno
Iska matlab SSP sir bhi galat padha rahe hain . Confusion pe confusion 😢
😂😂😂 yes
@@Ajay_singh-12188 🤣😂😂😂
@@Anas07007 sun bhai sachin sar acha pada te ha kya or hmm ssp se pad ke 70 outoff 50 la sakte ha
@@Ajay_singh-12188 haa bhai jaroor
@@Ajay_singh-12188bhai 70 out of 50 laega 😂😖 bruhh it's 50 out of 70
Best ever NCERT lecture on Capacitors 🎉
Sir you are best physics teacher. Now i can connect dots. 🙂🙂
Is this lecture is sufficient for board 2024... first time padhna h es chap ko ??
Question practice krna hoga bro aur . Concept samajhne ke liye ye lecture kaafi hai
Aaapka explaination bahut achha h sir thank you so much all concepts are clear
Pdf notes mila kya ye lecture ka
Best ever teacher sir you make clear all the content and it help us a lot and finally esa lg rha h ki Physics se easy ch toh koi h hi nhi litt
bhai 47:30 me x ka value negative aaya kya ? kaise aaya?
@@kk-zt8fh aa nhi rha h 2 cases lene h maths me krte h jaise negative wala ans wrong hojata hai or positive wala ans right hota hai
P.E of dipole in an extarnal field kh hai sir n hi formula, na hi derivation hai ?🎉
Deleted h
Is this one shot is sufficient for boards and neet exam...is this cover all the topics of ncert....sir pls tell me...I'm too confused 😢
yesssss
@@sachinsirphysics ohk sir...
2:22:50 toh sir agar earth ek capacitor hai... wouldn't that mean ki earthings se jo charge earth me transfer horha haii that's gonna reach a limit?? Does that mean ki in future earth might also reach it's limit and charge leakage shuru hojae? Ya does that happen often and earth has attained equillibrium or smthng ?
Sir example 2.2 me 2nd case me x positive aa rha hai calculate karne pe plz tell
u discussed example 2.6 without teaching potential energy of a dipole in an external field
Yes.....!
Sir lecture lene kai baad ncert bhi read kerni padegi yaah sirf joh notes banay hai voh revise kru?
ho jayega no need to do ncert after my lectures
Will the dielectric derivations be asked in the boards exams this year?
You have skipped the topic ….. PE of a dipole in an external field
1:49:34 ache se dekko 😊
1:39:38 sir -3P.E/2 kaisa aaya
sir i cant express how much iam thankful to you , u r the life saver right now . thankyou so much sir please keep helping the students.......sachu baba OP❤🔥
Was missing your lectures so just came here sir❤..livee hi aajao sir kise din🙃❤️✨️.everything fine sir?apki health?aapke mmy ki health? ❤
Shuklaa ji kese h
Anyone please explain me 54:40 why we take -q in (c) part ?
First you go and read the question their is work done by the field hai dekh mota mota batata hu jab questions mai work done by the field hoga tho work conservative hoga or usme charge q hamesha negative hoga -q
Sir you are providing the best thing to the students who cannot study in school 🎒 by their health or can't go to coaching by afraiding for board exams...you are the great teacher 💯thank you very much sir...🎉 please do upload best things...as this
Please reply me...i will glad to bless by you 🙏❤️
Sir aap physics wallah sebhi achha pada reheho please sir 2024 board exam Tak bhii ashe hi padete raho
Sir... Your conceptual teching is very nice but please provide english subtitles for your non -hindi subscribers...
Thankyou so much sir🙏...i am hindi medium student but your lecture is very helpful for me..
And I do self study..
Sir physics ka syllabus kab tak complete ho jaega?
1:09:16 mai Ez bhi toh aana chahiye tha??
Notes kaha milega yee wala class ka?
There is one request sir that please mention the proper heading of the dervations so that we can easily understand.
He knows what we have required
Super teacher
I didnt understood the difference between electric potential and electric potential energy
In simple words.. potential energy is the "work done" in bringing charge from one point to another whereas potential is "work done per unit charge"
Diff yeh hai ki..energy kaam bta rahi hai ki 2 charges k beech kitna kaam hua hai.. aur potential yeh bta Raha hai ki ek charge ne pure kaam Mai se apna kaam kitna Kiya..
Someone please provide the telegram link of this chapter for notes
Sir example2.6 Mai -3pE/2 nhi hoga only -PE/2 hoga because apne khali ek minus likha hai Waha do minus hoke plus hojayega or fir ans 3joule aayega
1:39:21 what if polarisation would have been anything other than 100%...what's supposed to be done sir??
Is this also for state board...coz there is no reduction in our state board syllabus???????
Plsss Tell❤❤❤❤
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Tum ye wala video mat dekho ye cbse k latest syllabus k hisab se h aur isme deleted nhi kar waye h .sachin sir isse pehle jo video Dale h full syllabus wala usko dekho
2:16:40 Ans constant
Sir aap ki aawaj sunai nahi deti hai Thora tej bola kareyai please🤌
Love you chikuu bhaiya❤
Best teacher and all students best frnd hats off youu sir
Thanks sir..
I m allenite but watching you to clear concept.
U r superb...❤❤
1:36:40 sir you made mistake on taking power...-2 uper ayega to +2 hoga to wo 3 nhi 7 ho jayega... and 7-6=-1.......
Sir thoda theory bhi sath m karaya karo
Physics padhna h toh Sachin sir very best teacher❤❤
Sir please provide the pdf of this session.
Sir you derivation of electric potential due to dipole seem wrong to me . If you assume r- and r+ equal then dropping the perpendicular to get r- - r+ doesn't makes sense . Kindly answer if you read my question
Who is watching this now .....give attendance here 🔥😁
Don't worry full chapter hai saare derivations ke saath
You all must watch this without any hesitation
Your all concepts will crystal clear and I confidently say that you liked it
54:31 imp question
49:49 sir agar 45 hoga toh fir toh -ve charge se aage nikal jayega fir 15-45 = -30 ho jayega isiliye shayad not possible
1:04:03 is
can't find the pdf in telegram...please help
How (r+)( r-) became r² ? In derivation potential due to an electric dipole.. They both are not equal right?
- and + charge ko denote karr rahe hay, (r-) is the distance from -Q and (r+) is the distance from +Q charge, it is not +r, -r it is( r+ )and( r- )dyaan se dekho....
@@ayush.5ingh.__47:30 , x negative kaise aarha hai? 3x=30+2x => x=30 , if i am wrong can you please explain it to me
Point p if very far therefore the distance is nearly equal
@@kk-zt8fhyou’re right x=30
Thank you sir ji ❤️❤️ you are the best teacher
Is this helpful for cbse board exam?
Love you sir ur so cute 🥰 and ur teaching is awesome
Sir I don't find the handwritten notes of this chapter in the telegram group...
Sir iska note nahi mil raha h telegram par plz note ka date bata dijiye plz 😢
sir is lecture ki pdf nhi h telegram p , pls give the pdf
Ha bhai nhi hai pdf
Appreciated sir 👍.....you are incomparable 💯💯
Please koe ye bta do ke sphere or shells wale questions hai syllabus mai 2023 😢 ch 2 mai sir please bta dejeye
Sir really I can't can't explain you you are down to earth 💕🌍 literally I love physics 💞 sooo much and I want to score 95+ in physics and thankyou so much sir aaise he aacha aacha vdeo or concept karata rhana 12th class ko 2024 batch ko 👍🏼👍🏼👍🏼👍🏼👍🏼🙏🙏🙏🙏🙏🙏🙏🙏☺️
😮😮
Boyfriend k chakkar me mat phasna paka ajayega
@@alonestudy6800 ohk
Sir please post notes for all the chapters in seperate PDFs. The pdf you shared which contains all the chapters from 1 to 13 to large to open in my phone.
Sir notes download nhi ho paa rhe telegram se
Sachin sir I want to say that uhh are a great teacher ..... thankyou so much sir ❤... I am allenite but watching uhh to clear all my doubts and concepts once again thank you so much sir ❤
SIR THO HAI HI BEST❤
Sir kya ye video UP board English medium Walon ke liye bhi hai please sir reply
1:53:45 sir ye to delete h ..
quality content
According to me one of the best teacher is Sachin sir who made physics easy for me.
I am neet student is it sufficient for the exam plz help i am so confused?
Yes 👍🏻
you can also watch recent prachand series playlist
1:12:41=6 pairs
Sachin sir this lecture enough for boards 2024?
more than enough