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What are undamped and damped oscillation...

What are undamped and damped oscillations ?

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The oscillations whose amplitude does not change with time are known as damped oscillations.
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MODERN PUBLICATION-ALTERNATING CURRENT -Revision Exercises ( Very short Annwer Qustion )
  1. Why inductors or capacitors are used in AC circuits for controlling cu...

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  2. What are undamped and damped oscillations ?

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  3. What are undamped and damped oscillations ?

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

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

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

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

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

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

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  10. What is a step up transformer?

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  11. What is a step down transformer?

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  12. What is transformation ratio ?

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  13. What happens to the AC current in a transformer if alternating voltage...

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  14. What is the efficiency of a transformer ?

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  15. Why the core of a transformer is made up of a high permeability mater...

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  16. What is the average value of alternate voltage and current in a comple...

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  17. Why cannot a transformer be used to step up d.c. voltage ?

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  18. Name the main component which changes an a.c. generator into d.c. gene...

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  19. What is the instantaneous value of induced emf generated in the coil o...

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  20. What should be the value of sin omegat for induced emf to be maximum ?

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