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Network TheoryTransient Analysis

An inductor carries 3 A just before switching. If no impulsive voltage is applied, its current immediately after switching is?

  • A0 A
  • B1.5 A
  • C3 A
  • DInfinite
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Correct Answer: C. 3 A
Explanation: Inductor current is continuous in the absence of an impulse voltage, hence iL(0+)=iL(0-)=3 A.
Reference: Standard network theory: inductor continuity
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