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MHT CET 2026 (11 Apr, Shift 2) · Power, Power Factor & Wattless Current

Power, Power Factor & Wattless Current question from MHT CET 2026 (11 Apr, Shift 2)

Q5MHT CET 2026 · 11 APR · SHIFT 2Easy

Power, Power Factor & Wattless Current

In an a.c. circuit containing L, C and R in series, the ratio of apparent power to the true power is (Z= impedance of the circuit and R= resistance)

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Answer: (d)

Apparent power $= V_{rms}I_{rms}$ , true power $= V_{rms}I_{rms}\cos\phi$ .
Ratio $= \frac{1}{\cos\phi}$ and $\cos\phi = \frac{R}{Z}$ .
So apparent/true $= \frac{Z}{R}$ .
So the answer is (d) $\frac{Z}{R}$ .

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