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A loop is kept so that its center lies a...

A loop is kept so that its center lies at the origin of the pointing along Z -axis as shown in the figure

A

No emf and current will be induced in the loop if it rotates about Z-axis

B

emf is induced but no current flows if the loop is a fiber when it rotates about y-axis.

C

emf is induced and induced current flows in the loop if the loop is made of copper & is rotated about y -axis

D

If the loop moves along Z axis with constant velocity no current flows in it.

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
If the loop rotates about Z axis the variation of flux linkage will be zero. Therefore no emf is induced. Consequently no current flows in the loop
When it rotates about y axis its flux linkage changes . However in insulators there can not be motional emf.
If the loop is made of copper , it is conductive therefore induced current is set up. If the loop moves along the Z axis variation of flux linkage is zero . Therefore the emf and current will be equal to zero.
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