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BITSAT2021PhysicsAlternating CurrentActual

An alternating voltage V = V ₀ t is applied across a circuit. As a result, a current I = I ₀ ( t - 2 ) flows in it. The power consumed per cycle is

Options

  1. Azero
  2. B0.5 ~V ₀ I ₀
  3. C0.707 ~V ₀ I ₀
  4. D1.414 ~V ₀ I ₀

Correct answer

A. zero

Step-by-step solution

The phase angle between voltage V and current I is 2 . Therefore, power factor = ( 2 )=0 . Hence the power consumed is zero.

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