Physics · 2023
JEE Main · 15 April 2023, Shift 1 · Q48
A 12 V battery connected to a coil of resistance 6 Ω through a switch, drives a constant current in the circuit. The switch is opened in 1 ms. The…
A $\displaystyle 12$ V battery connected to a coil of resistance $\displaystyle 6 \Omega$ through a switch, drives a constant current in the circuit. The switch is opened in $\displaystyle 1$ ms . The emf induced across the coil is $\displaystyle 20$ V . The inductance of the coil is :
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 10$ mH
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.