Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A coil of inductance 
and resistance 
is connected to a battery of 
. Determine approximately:
A
The time elapsed before the current acquires half of its steady - state value 
B
The energy stored in the magnetic field associated with the coil at an instant 
after the circuit is switched on. (Given In2 
, 
) 
after the circuit is switched on. (Given In2 , )
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Given circuit is 
growth circuit
Solving 
,
by solving we get 
.
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