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Physics Medium CSS Uploaded: 06 Aug 2026

Which quantity measures the opposition to current flow in an alternating current circuit, including resistance and reactance?

  • A Resistance
  • B Conductance
  • C Impedance
  • D Capacitance
Correct Answer: Option C — Impedance
Explanation:
Impedance represents the total opposition a circuit presents to alternating current flow, combining both resistance and reactance from capacitors and inductors. It is a crucial concept in analyzing AC circuit behavior and performance.
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