Mathematics · Electromagnetic Induction
When the current in a coil changes from 8 A to 2 A in 3 × 10-3 s, the electromotive force (emf) induced in the coil is 4 V. The self-inductance of the coil is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14.0 mH
- 20.5 mH
- 31.0 mH
- 42.0 mH✓
Correct answer
2.0 mH
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