Q. 23.9( 14 Votes )

A long straight c

Answer :

Induce emf (e) is directly proportional to rate of change of magnetic

Flux (ϕB).

Magnetic flux, ϕB = B. A cosθ


B = Magnetic field

A = Area

θ = Angle between B and A

Here, Loop is perpendicular to wire. So,

θ = 900

Magnetic flux (ϕB) = B. A cos0

Magnetic flux (ϕB) = 0

The induced emf,

Since, there is no flux linked with the loop the induced current ill also be 0.

Hence, no change in emf even though there is a change in current

in wire.

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