A long solenoid of radius R carries a time dependent current `I = I_(0) t(1 – t)`. A ring of radius 2R is placed coaxially near its centre. During the time interval`0 le t le 1`, the induced current `I_(R)` and the induced emf VR in the ring vary as:A. current will change its direction and its emf will be zero at t = 0.25sec.B. current will not change its direction & emf will be maximum at t = 0.5secC. current will not change direction and emf will be zero at 0.25sec.D. current will change its direction and its emf will be zero at t = 0.5sec.

A long solenoid of radius R carries a time dependent current `I = I_(0

1.	A long solenoid of radius R carries a time dependent current `I = I_(0) t(1 – t)`. A ring of radius 2R is placed coaxially near its centre. During the time interval`0 le t le 1`, the induced current `I_(R)` and the induced emf VR in the ring vary as:A. current will change its direction and its emf will be zero at t = 0.25sec.B. current will not change its direction & emf will be maximum at t = 0.5secC. current will not change direction and emf will be zero at 0.25sec.D. current will change its direction and its emf will be zero at t = 0.5sec.
Answer» Correct Answer - D

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