Same as problem 4 except the coil A is made to rotate about a vertical axis figure. No current flows in B if A is at rest. The current in coil A, when the current in B (at t = 0) is counter clockwise and the coil A is as shown at this instant, t = 0, is

Same as problem 4 except the coil A is made to rotate about a vertical

1.	Same as problem 4 except the coil A is made to rotate about a vertical axis figure. No current flows in B if A is at rest. The current in coil A, when the current in B (at t = 0) is counter clockwise and the coil A is as shown at this instant, t = 0, is
Answer» constant current clockwise varying current clockwise. varying current COUNTER clockwise. constant current counter clockwise. Solution :When loop A is ROTATED, flux linked with loop B decreases and according to Lenz.s law INDUCED current will oppose this DECREMENT. Now, induced current in B is in counterclockwise (given) which indicates that outward flux linked with loop B decreases. This is possible only when prevailing current in loop A must be in clockwise and it should be constant because when loop A is stationary no current is induced in loop B. (Consider loop A as magnet and THINK about how magnetic field lines of loop A link with loop B).

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Same as problem 4 except the coil A is made to rotate about a vertical axis figure. No current flows in B if A is at rest. The current in coil A, when the current in B (at t = 0) is counter clockwise and the coil A is as shown at this instant, t = 0, is

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