Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A long solenoid of radius 
carries a time 
dependent current 
. A ring of radius 
is placed coaxially to the middle. During the time instant 
, the induced current 
and the induced EMF 
in the ring changes as
A
Current will change its direction and its emf will be zero at 
.
.
B
Current will not change its direction and its emf will be maximum at 
.
.
C
Current will not change direction and emf will be zero at 
.
.
D
Current will change its direction and its emf will be zero at 
.
.
Text Solution
Verified by ExpertsThe correct answer is:
D
Field due to solenoid near the middle 
Current will change its direction when EMF will be zero
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