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AP EAMCET201724 Apr 2017Evening ShiftPhysicsAlternating CurrentActual

An inductor and a resistor are connected in series to an ac source of variable frequency. When the frequency of the applied ac is 50 ~Hz , the power factor of the circuit is 3 2 . If the frequency of the ac is increased by 200 % , the power factor of the circuit is ____.

Options

  1. A0.8
  2. B0.9
  3. C0.7
  4. D0.5

Correct answer

D. 0.5

Step-by-step solution

No solution. Refer to answer key.

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