Mathematics · Electromagnetic Induction
An average induced e.m.f. of 0.2 V appears in a coil when the current in it is changed from 5.0 A in one direction to 5.0 A in the opposite direction in 0.2 s. The self-inductance of the coil is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 18.0 mH
- 25.0 mH
- 32.0 mH✓
- 44.0 mH
Correct answer
2.0 mH
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