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MHT CET 2023 (14 May, Shift 2) · Power, Power Factor & Wattless Current

Power, Power Factor & Wattless Current question from MHT CET 2023 (14 May, Shift 2)

Q45MHT CET 2023 · 14 MAY · SHIFT 2Easy

Power, Power Factor & Wattless Current

What will be the phase difference between virtual voltage and virtual current when current in the circuit is wattless?

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Answer: (c)

  1. Wattless current means P=VrmsIrmscos⁡ϕ=0P = V_{rms}I_{rms}\cos\phi = 0.
  2. So cos⁡ϕ=0\cos\phi = 0, i.e. ϕ=90∘\phi = 90^\circ.
  3. So the answer is (c) 90∘90^\circ.
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