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Electromagnetic Induction question

2023 · 15 Apr · Shift 1 · Q62
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  5. /2023 · 15 Apr · Shift 1 · Q62

Electromagnetic Induction question

2023 · 15 Apr · Shift 1 · Q62

JEE MainPhysicsElectromagnetic InductionMCQ+4 / −1
12 V12 \mathrm{~V}12 V battery connected to a coil of resistance 6Ω6 \Omega6Ω through a switch, drives a constant current in the circuit. The switch is opened in 1 ms1 \mathrm{~ms}1 ms. The emf induced across the coil is 20 V20 \mathrm{~V}20 V. The inductance of the coil is :
  1. A
    5 mH5 ~ \mathrm{mH}5 mH
  2. B
    8 mH8 ~\mathrm{mH}8 mH
  3. C
    10 mH10~ \mathrm{mH}10 mH
  4. D
    12 mH12 ~\mathrm{mH}12 mH
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