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Electromagnetic TheoryInductance

An inductor of 2 H carries a current increasing at 3 A/s. The magnitude of its induced voltage is?

  • A1.5 V
  • B5 V
  • C6 V
  • D9 V
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Correct Answer: C. 6 V
Explanation: v=L di/dt=2×3=6 V.
Reference: Standard electromagnetic theory: inductance
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