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KCET2019PhysicsAlternating Current

An inductor of inductance ( L ) and resistor ( R ) are joined together in series and connected by a source of frequency ( ). The power dissipated in the circuit is

Options

  1. A( V R²+ ² L² )
  2. B( R²+ ² L² V )
  3. C( V² R R²+ ² L² )
  4. D( V² R R²+ ² L² )

Correct answer

D. ( V² R R²+ ² L² )

Step-by-step solution

(D) [ array l I= v R²+ ² L² P=I² R= v² R R²+ ² L² array ]

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