Mathematics · Self Induction
A 12 V battery connected across a 6 Ω, 10 mH coil through a switch drives a constant current in the circuit. If the switch is suddenly opened and it takes 1 ms to open completely, the average emf induced across the coil during this interval is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 112 V
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- 320 V✓
- 410 V
Correct answer
20 V
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