Question

A steady current of 5a is flowing through a comductorab .What will be the value of induced current in the circular wire of radius 1m

Answer 1

there will be no induced current until there is a change in magnetic flux

Answer 2

There will be no induced emf or the induced current.

Explanation:

It is given that,

Current flowing in the conductor, I = 5 A

Radius of the circular wire, r = 1 m

We know that the induced emf is given by the formula as :

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

$\phi$ is the magnetic flux, $\phi=BA$

B is the magnetic field and A is the area of wire

An emf or the current will induced until and unless there is a change in magnetic field or the area of cross section of the wire. Here, there is no change in the magnetic flux. So, no emf will be induced. Hence, there is no induced current.

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