A long solenoid of radius 2 cm has 
and carries a current of 5 A. A coil of radius 1 cm having 100 turns and a total resistance of 
is placed inside the solenoid coaxially. The coil is connected to a galvanometer. If the current in the solenoid is reversed in direction, find the charge flown through the galvanometer
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Given: 
i 
B 
R 
or 
e 
… (i)
Also, 
… (ii)
From equation (i) and (ii),
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