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Network TheoryTransient Analysis

In DC steady state after a long time, an ideal capacitor behaves as a?

  • AShort circuit
  • BOpen circuit
  • CVoltage source of zero resistance in every case
  • DCurrent source
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Correct Answer: B. Open circuit
Explanation: For constant DC voltage, capacitor current i = C dv/dt becomes zero, so an ideal capacitor behaves as an open circuit in steady state.
Reference: Standard network theory: transient analysis
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