Question

If the turns are increased in the coil then the induced current in the coil will be ____( ) the options are a) decrease b) increase c) zero d) do not change​

Answer 1

Answer:

increases. increases

Answer 2

If the turns are increased in the coil then the induced current in the coil will increase.

Explanation:

Due to the change in number of coil, an emf gets induced in it. It is given by the rate of change of magnetic flux such that,

$\epsilon=\dfrac{-d\phi}{dt}$

$\phi$ is the magnetic flux

$\phi=NBA$

N is the number of coils

B is the magnetic field

A is the area of cross section

if I is the induced current, it is given by using Ohm's law as :

$I=\dfrac{\epsilon}{R}$

$I=\dfrac{NBA}{R}$

It is clear that the induced current is directly proportional to the number of coils. So, if the turns are increased in the coil then the induced current in the coil will increase. Hence, the correct option is (b).

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Induced emf

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