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AP EAMCET202316 May 2023Morning ShiftPhysicsElectromagnetic InductionActual

An inductor is connected to an ac source of frequency 50 Hz . The frequency of the instantaneous power developed in the circuit is

Options

  1. A25 ~Hz
  2. B50 ~Hz
  3. C100 ~Hz
  4. D200 ~Hz

Correct answer

C. 100 ~Hz

Step-by-step solution

For AC circuit containing inductor only. aligned & I=I₀ t & V=V₀ ( t+ 2 )=V₀ t aligned So, power, P = VI aligned & =V₀ Cos t I₀ t & = V₀ I₀ 2 2 t aligned Clearly the frequency becomes 2 times. f ^ =2 f =2 50=100 ~Hz

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