JEE Main 202126 Aug, Morning shiftPhysicsEasyElectromagnetic Induction and Alternating Currents149× since 2002
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 :