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The input of an AC circuit having power factor of 0.8 lagging is 40kVA The power drawn by the circuit is:
  • a)
    12 kW
  • b)
    22 kW
  • c)
    32 kW
  • d)
    64 kW
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The input of an AC circuit having power factor of0.8lagging is40kVAThe...
Where,
kVA = Apparent power (S)
kW = Active / True power (P)
kVAR = Reactive power (Q)
cos⁡ø = Power factor
In an A.C. circuit, true power drawn by the circuit is given by:
True power = Apparent power × Power factor .
Here, input apparent power is 40kVA and the power factor is 0.8
The power drawn by the circuit is:
(40 x 0.8)kW = 32 kW
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The input of an AC circuit having power factor of0.8lagging is40kVAThe power drawn by the circuit is:a)12 kWb)22 kWc)32 kWd)64 kWCorrect answer is option 'C'. Can you explain this answer?
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