state and explain faraday's laws of electromagnetic induction. deduce an expressionfor the induced emf in a coilrotating uniformly in a uniform magnetic field.

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state and explain faraday's laws of electromagnetic induction
deduce an expressionfor the induced emf in a coilrotating uniformly
in a uniform magnetic field

Ajay Shukla · Accepted Answer

The faraday's law
of induction: rate of change of magnetic flux on a
conductor is equal to the emf generated

emf induced = -dÏ†/dt , where

Ï†
is magnetic flux

Some properties are:

1 The induce emf always opposes the change of flux, which is known
as the Lenz law

2 There can be two types of induction: self induction and mutual
induction

Faraday's laws of electromagnetic induction, E M F induced in a
coil (e) = -(rate of change of magnetic flux linkage)

Hence, we have,

1 The
induced e m f is directly
proportional to N , the total number of turns in the
coil
2 The
induced e m f is directly proportional to A , the area of
cross-section of the coil
3 The
induced e m f is directly proportional to B , the strength of the
magnetic field in which the coil is rotating
4 The
induced e m f is directly proportional to w , the angular velocity
of coil
5 The
induced e m f also varies with time and is dependent on instant 't'
Therefore, electromagnetic induction depends on the factors given
above