MCQ Practice Question

Immediately after a switching operation, which quantity of an ideal capacitor cannot change instantaneously?

  • ACurrent
  • BVoltage
  • CPower
  • DResistance
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Correct Answer: B. Voltage
Explanation: Capacitor voltage cannot change instantaneously because an instantaneous finite voltage change would require an impulse or unbounded current according to i = C dv/dt.
Reference: Standard network theory: transient analysis
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