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How does AC differ from DC? What are the...

How does AC differ from DC? What are the advantages and disadvantages of AC over DC?

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AC can be transmitted over long distances without much loss of energy because AC voltage can be easily increased or decreased to suitable value.
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MODERN PUBLICATION-ALTERNATING CURRENT -Revision Exercises ( Very short Annwer Qustion )
  1. How can we represent AC mathematically ?

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  2. The peak value of 220 a.c. is

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  3. How does AC differ from DC? What are the advantages and disadvantages ...

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  4. What is the phase relationship between voltage and current in an AC ci...

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  5. Draw a graph between voltage and current in case of an AC circuit cont...

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  6. Is the behaviour of resistance is the same in both AC and DC circuits ...

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  7. What is the average value of a.c. over a full cycle ?

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  8. What is the relation between mean value of AC with the peak value ?

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  9. Give the relation between the rms value and peak value of AC .

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  10. What is the significance of phasors in AC circuits ?

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  11. What is the phase relationship between voltage and current in case of ...

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  12. Draw a graph between voltage and currenrt in case of an AC circuit con...

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  13. Compare between inductive reactance and capacitive reactance.

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  14. How inductive reactance depends on the frequency of AC ?

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  15. What is the phase relationship between voltage and current in case of ...

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  16. Draw a graph between voltage and current in case of an AC circuit cont...

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  17. Define capacitor reactance. Write its SI units.

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  18. How capacitive reactance depends on the frequency of AC ?

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  19. What is the value of capacitive reactance (X(C)) in DC circuits ?

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  20. Plot a graph showing variation of capacitive reactance with the change...

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