Q. An inductor coil stores 64 J of magnetic field energy and dissipates energy at the rate of 640 W when a current of 8A is passed through it. If this coil is joined across an ideal battery, find the time constant of the circuit in seconds :
(1) 0.4
(2) 0.8
(3) 0.125
(4) 0.2 (JEE-2021)
Aditya Bhatt Answered question 30 January 2024
