In an A.C. circuit with voltage V and current I the power

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In an A.C. circuit with voltage V and current I the power dissipated is

1. dependent on the phase between V and I
2. 1 VI
  √2
3. 1 VI
  2
4. VI

Correct Option: A

Power dissipated = E^rms. I^rms = (E^rms) (I^rms) cos θ
Hence, power dissipated depends upon phase difference.