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XII_51.Self Inductance,Mutual Inductance.mp4



Class XII Physics Class room lecture by Pradeep Kshetrapal. Chapter : Electro Magnetic Induction. Topic : Self Induction and Mutual Induction. Language : Hindi and English mixed.

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Длительность: 59:09
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Комментарии:

Автор Preeja Ravindran (1 месяц)
sir,when we consider the mutual inductance of two coils of different
lenghts,why do we take the longer length in our expresssion. 

Автор varun sahni (1 месяц)
and one more doubt ki M21 toh exist karegi as humne baatery coil 1 mein
lagayi hai and current usme se jaayega and coil 2 par coil 1 ki magnetic
field se hone wala fluc change hoga but for M12 how can M12 exist -2 mein
toh battery connect hee nahi hai toh coil 2 mein toh koi current hee nahi
jaaayega and then M12 will have no meaning as coil 1 mein toh coil 2 ki
wajah se induction hoga hee nahi as 2 mein battery hee nahi connect so
willl there be no emf induced in coil 1 with respect to coil 2
plz reply

Автор varun sahni (1 месяц)
sir ek baat puchni thi ki bade area mein bhi toh magnetic field hoga as
chote area waale solenoid ke bahar bhi toh magnetic field lines hoti hai
toh voh line bade area se jaayengi and hum bada area phir bhi kyon nahi
lete

Автор Surbhi Chauhan (3 месяца)
Thank u so much for these videos Sir

Автор trishla pareek (6 месяцев)
what is difination for 1 henry in self nd mutual induction ?

Автор Khushboo Bhatia (1 год)
this vedio really helped me alot sir ..thankyou so much sir.

Автор smita roy (1 год)
sir can u plzz tell sme important derivations nd defination in AC chapter!
as i will have my hlf yearly after 4 days.. nd till nw this chap is nt been
cmpleted in our skul.. bt sir said he will give question.. cn u plz guide
me...for this...

Автор Nakul Ratti (1 год)
Sir i think it is very convenient for the internet students .

Автор Ravi Kaluva (1 год)
thanku sir for uploading this pls sir can u tell Are there other teachers
for CHEMISTRY in your knowledge who upload similar things like you in
similar manner ?

Автор Pradeep Kshetrapal (1 год)
N is total number of turns. the flux calculated is linked to each turn.
therefore total flux linked is N*flux. according to definition Inductance L
is Flux per unit current.therefore it is L=(N*Magnetic flux)/current

Автор Debu Kc (2 года)
sir is there an easy way to explain what emf is and why is it said that it
is not a force,,something is unclear

Автор Angel Heaven (1 год)
thnks a lot sir,,,, nd my other questions r pending too....so do reply
sir.. vry thnkful to you!!!

Автор Nikhil Shenoy (1 год)
Sir, have you made a video on growth and decay of current in an LR Circuit
. In case of its presence can you give the link of its video . You are an
excellent teacher

Автор malliukarjun muddhangula (1 год)
sir...... what about N (no of turns) in solenoid ? and what about this
equation L=(N*Magnetic flux)/current

Автор shoaib salmani (1 год)
Sir I m a Mumbai based student....whenever I have doubts I switch to your
lecture as they r too good sir but after a while ur video sound detour
badly sir plz help me as to how can I over come this problem!!! Plz sir

Автор Angel Heaven (1 год)
i know sir tht an induced emf will develop.....but what abt the actual emf
tht we r providing????

Автор Amartya (1 год)
is this derivation important sir?

Автор anjana kumar (1 год)
Sir,is Lenz's Law important....????....

Автор Pradeep Kshetrapal (2 года)
A force which move electrons is electromotive force. This was earlier
principle and the reason for nomenclature. Later with advancement of
science we learned that in fact force is derivative of energy w.r.t.
distance i.e. F= work/ displacement. So it is more logical to say that
source has an energy due to which force is applied on electrons to move. So
now it is ' work done', but no change is made in the classical name emf to
avoid any confusion. You can say it is misnomer.

Автор smita roy (1 год)
thnk you sir!

Автор Angel Heaven (1 год)
why sir A1 is considered when magnetic field is produced by the secondary
coil....coz flux will cover both the areas...??

Автор sai krishna (1 год)
sir in which current is greater: self inductance induced current or mutual
inductance induced current?? and how can we convert a utually induced
circuit or a self induced circuit into a circuit as in that of current
electricity??

Автор Rakesh Roshan (1 год)
Thanks sir for such valuable lectures. Watever marks I will score in my pre
Board Exams , they will be only because of you. Sir , Are there other
teachers for CHEMISTRY in your knowledge who upload similar things like you
in similar manner ?

Автор Pradeep Kshetrapal (1 год)
the magnitude of emf is 1. -ve sign shows that it is in direction opposite
to change of flux. So emf 1 or -1 is same except for direction, and that
does not matter for us. we are concerned with potential difference.

Автор Angel Heaven (1 год)
sir...can u plz tell me abt the physical meaning of inductor..i mean what
kind of component it is.......plz sir so tht i can clear out my
concept....do reply sir

Автор Arid (1 год)
@Pradeep Kshetrapal sir we can always rewind and listen again if we didnt
get it first time so please do whichever is convenient to you. you already
are doing a great help by uploading these for free

Автор Pradeep Kshetrapal (1 год)
I write definition for convenience of internet students other wise for me
as well for my class, dictating is more convenient. What do you suggest?

Автор Pranav Nahal (1 год)
sir , i thank you for your efforts , wish you a very happy teacher's day ,
and a small request - please improve the audio quality because at times you
are not audible regards pranav nahal

Автор vishaldad (1 год)
sir u can dictate ,at least i have no problem,

Автор Arid (1 год)
Sir you are an excellent teacher but i have one suggestion. Start dictating
definitions to them instead of writing. Or in college they will have a
tough time :)

Автор pawan panjwani (1 год)
sir when we say that current is changing then it is correct that an emf is
induced in coil but if we say circuit means whether it is only a inductor
what if in a circuit there is a only a resistor and if current is changing
then what will happen sir please reply

Автор Angel Heaven (1 год)
do reply me sir....

Автор nikhil thapa (1 год)
can u send me the notes ( nikhilthapa12@gmail.com )

Автор jitender yadav (1 год)
thanks sir.:)

Автор Tushar Vig (1 год)
sir in your above video i had a confusion as we know emf=-l change in flux
per unit time.if change in flux per unit time is considered as 1.then emf
=-l but why u have wrote as emf=l

Автор Debu Kc (2 года)
Thankyou very much sir for your help..U really are a godsent person..more
doubts coming up sir ..U have motivated me to work hard; thankyou again

Автор Angel Heaven (1 год)
sir in case of mutual induction....we r considering indued emf in second
due to fst....but sir why we r not considering the self induction produced
in fst itself??

Автор Pradeep Kshetrapal (1 год)
Imagine a spring made of conducting wire. It is Inductor.

Автор smita roy (1 год)
sir self inductance and self induction are the same thng???

Автор Angel Heaven (1 год)
nd sir...why we r considering mutual induction same for both the coils
although it depends upon the dimensions nd properties of individual
coils.....their radii cross sectional area etc..

Автор Pradeep Kshetrapal (1 год)
If it is a purely resistive circuit and the current is changing, there is
no reaction from resistance. It is unlike inductor and capacitor which
react with changing current.

Автор Pradeep Kshetrapal (1 год)
Self Inductance is property of coil (noun) . Self Induction is process of
having self inductance.

Автор Daksh Khetarpal (1 год)
can you please send me your notes of class 12 and 11

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