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Give the expression for average power di...

Give the expression for average power dissipated in a resistor over a complete as cycle.

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It is equal to product of virtual voltage and virtual current.
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MODERN PUBLICATION-ALTERNATING CURRENT -Revision Exercises ( Very short Annwer Qustion )
  1. How the quality factor effects the selectivity of the circuits ?

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  2. What do you mean by power in an Ac circuit ?

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  3. Give the expression for average power dissipated in a resistor over a ...

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  4. What is the power factor of a circuit having a pure resistance only?

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  5. What is the power factor of an A circuit containing inductor or capac...

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  6. The power factor of an AC circuit is 0.5 . What will be the phase diff...

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  7. Define the term 'wattles current'.

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  8. What is the idle component or wattless component of AC ?

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  9. Why inductors or capacitors are used in AC circuits for controlling cu...

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  10. What are undamped and damped oscillations ?

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  11. What are undamped and damped oscillations ?

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  12. What is the dimensional formula of sqrt(LC) ?

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  13. What is the natural frequency of LC circuit ? What is the reactance of...

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  14. What is the energy stored in a pure LC circuit ?

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  15. Why connot we use a.c. for electrolysis?

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  16. sqrt(k//m) has dimennsions of which physical quantity?

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  17. What is a transformer ? On what principle the transformer is based ?

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  18. What is a step up transformer?

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  19. What is a step down transformer?

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  20. What is transformation ratio ?

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