Jee Main
Electromagnetic Induction
JEE Main 2023 (Online) 15th April Morning Shift
MCQ+4 / -12023
$12 \mathrm{~V}$ battery connected to a coil of resistance $6 \Omega$ through a switch, drives a constant current in the circuit. The switch is opened in $1 \mathrm{~ms}$. The emf induced across the coil is $20 \mathrm{~V}$. The inductance of the coil is :