Question: In a single-phase ac circuit, for a general load composed of RLC elements under sinusoidal-steady-state excitation, the average reactive power is given by (a) V

In a single-phase ac circuit, for a general load composed of RLC elements under sinusoidal-steady-state excitation, the average reactive power is given by

(a) $V_{rms} I_{r m s} \cos ϕ$

(b) $V_{r m s} I_{r m s} \sin ϕ$

(c) Zero $ϕ$ is the power-factor angle

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