Physics · 2021
JEE Main · 3 August 2021, Shift 1 · Q24
An inductor coil stores 32 J of magnetic field energy and dissipates energy as heat at the rate of 64 W when a current of 8 A is passed through it.…
An inductor coil stores $\displaystyle 32$ J of magnetic field energy and dissipates energy as heat at the rate of $\displaystyle 64$ W when a current of $\displaystyle 8$ A is passed through it. When this coil is joined across an ideal battery, the time constant of the circuit is
\_\_\_\_ s (second).
Official answer
1
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.