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A circular insulated copper wire loop is...

A circular insulated copper wire loop is twisted to form two loops of are A and 2A as shown in the figure. At the point of crossing the wires remain electrically insulated from each other. The entire loop lies in the plane ( of the paper). A uniform magnetic `vecB` point into the plane of the paper . At t=0, the loop starts rotation about the common diameter as axis with a constant angular velocity `omega` in the magnetic field. Which of the following options is /are correct ?

A

The net emf induced due to both the loops is proportional to `cos omega t`

B

The rate of change of the flux is maximum when the plane of the loops is perpendicular to plane of the paper

C

The amplitude of the maximum net emf induced due to both the loops is equl to the amplitude of maximum emf induced in the smaller loop alone

D

The emf indued in the loop is proportional to the sum of the area of the two loops.

Text Solution

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The correct Answer is:
B, C
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