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Derive an expression for true power and ...

Derive an expression for true power and virtual power of an a.c. circuit. How will you differentiate between true power and virtual power?

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MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
  1. Is power dissipated across each element of an a.c. circuit containing ...

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  2. Obtain an expression for the power in a.c. circuit containing a resist...

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  3. Derive an expression for true power and virtual power of an a.c. circu...

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  4. A voltage V = V0 sinomegat is applied to a series LCR-circuit. Derive ...

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  5. A voltage V = V0 sinomegat is applied to a series LCR-circuit. Derive ...

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  6. Derive an expression for average power of an AC (alternating current) ...

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  7. Derive an expression for average power of an AC (alternating current) ...

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  8. Derive an expression for average power of an AC (alternating current) ...

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  9. What do you mean by power factor? On what factors does it depend?

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  10. What is a sereis resonant circuit? Derive an expression for resonance ...

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  11. Derive an expression for average power is an A.C. circuit containing r...

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  12. What is the quality factor (Q) in an a.c. circuit?

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  13. Why choke coil cannot be used in d.c.?

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  14. Explain the function of a choke coil.

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  15. Draw a schematic diagram of a cyclotron. Explain the underlying princi...

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  16. With the help of labelled diagram, describe the principle,construction...

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  17. Derive the relationship between peak and the rms value of current in a...

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  18. Describe briefly, with the help of a lablled diagram, working of a ste...

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  19. What are the factors which reduce the efficiency of a transformer ?

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  20. Establish relation between voltage and current in primary and secondar...

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