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MHT CET2009PhysicsAlternating Current

In an AC circuit, the instantaneous values of emf and current are e=200 314 t volt and I= (314 t+ 3 ) amp. The average power consumed in watt is

Options

  1. A200
  2. B100
  3. C50
  4. D25

Correct answer

C. 50

Step-by-step solution

V_ rms = 200 2 , I_ rms = 1 2 P=V_ rms I_ rms = 200 2 1 2 3 =50 ~W

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