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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACMotional & Rotational EMFMedium2 min
PhysicsMediumsingle choice

A conducting loop moves in -plane with velocity as shown. A uniform magnetic field exists in the whole region, and a uniform magnetic field exists in addition for all . (At the shown instant)

image.png

 

image.png

Options:

Answer:
B
Solution:

Motional EMF depends on and flux change.

For P, a uniform gives a potential difference and no current, corresponding to (2,3).

For Q, EMF exists, and there is no net flux change, corresponding to (1,3).

For R, only in induces current from P to Q, corresponding to (2,5).

For S, there is an induced EMF and a potential difference, corresponding to (1,4).

Hence, Option B.

Stream:JEESubject:PhysicsTopic:EMI/ACSubtopic:Motional & Rotational EMF
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