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Answer: B. zero

Answer: (b) zero

In a purely inductive circuit, a purely capacitive circuit, or a circuit with only L and C (no resistance), the current and emf differ in phase by \(\pi/2\), so power factor \(\cos\phi=\cos 90^\circ=0\). The average power consumed is zero.

Doubtly AI · 28 Oct 2026 AI-verified · Oct 2026 Report
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