Question

What is electromagnetic induction? Write any two factors on which the induced

current depends in Faraday’s experiment.​

Answer 1

Answer:

Two factors on which induced e.m.f. depends on electromagnetic induction are as follows: 1) The strength of the magnetic field: It is directly proportional to induced e.m.f. 2) The number of coils: It is directly proportional to induced e.m.f

Answer 2

ELECTROMAGNETIC INDUCTION:

• It refers to current produced in a circuit due to formation of EMF (electro-motive force) with respect to a varying magnetic field and magnetic flux.

• It was first discovered by Michael Faraday and mathematically postulated by James Clerk Maxwell.

• The EMF produced can be mathematically written as :

$\boxed{ \bf \: E = \dfrac{\Delta \phi}{\Delta t}}$

Now, current in circuit hence depends upon 2 factors:

• Rate of change of magnetic flux: Higher the rate change, higher will be the EMF and higher will be the current.

• Number of coils of wire around the magnetic field: Higher the number of coils, higher is the current.

Hope It Helps.