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NEET2008PhysicsAlternating CurrentActual

In an a.c. circuit the e.m.f. (e) and the current (i ) at any instant are given respectively by aligned & e=E₀ t & i=I₀ ( t- ) aligned The average power in the circuit over one cycle of a.c. is

Options

  1. AE ₀ I ₀
  2. BE₀ I₀ 2
  3. CE₀ I₀ 2
  4. DE₀ l₀ 2

Correct answer

D. E₀ l₀ 2

Step-by-step solution

Since phase difference between current and e.m.f is P_ a V = E₀ l₀ 2

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