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In what situation it is preferable to us...

In what situation it is preferable to use an a.c. over dc.?

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R G PUBLICATION-ALTERNATING CURRENT-EXERCISE
  1. Discuss parellel resonance circuit. Where is it used?

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  2. An ideal inductor consumes no power in the circuit. Explain.

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  3. In what situation it is preferable to use an a.c. over dc.?

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  4. A capacitor allows only a.c. to pass through. Why?

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  5. Calculate the phase difference between voltage and current when circui...

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  6. Calculate the energy stored in a capacitor.

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  7. With a diagram show that in pure resistor, the voltage and current are...

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  8. An ac voltage is applied to a series of LCR circuit. Determine the in...

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  9. "Larger the value of Q, the smaller of the value of 2 Delta omega or t...

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  10. A resistor of 100Omega and a capacitor of 20/pi muF are connected in s...

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  11. Show that the LC oscillation is similar to the mechanical oscillation ...

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  12. What are the main two types of transformer.

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  13. A transformer is used to illuminate a bulvb (36 watt and 12v) with the...

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  14. Calculate the total resistance in L-C-R circuit by mathematical method...

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  15. Calculate the phase difference between voltage and current at resonanc...

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  16. The instantaneous current from an a.c. source is given by I=5sim 314t....

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  17. The electric mains in house are marked 220V, 50 Hz. Write down the equ...

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  18. A sinusoidal voltage V=200 sin 314t is applied to a resistor of 10 Ome...

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  19. A sinusoidal voltage V=200 sin 314t is applied to a resistor of 10 Ome...

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  20. What should be the frequency of alternating 200V so as to pass maximum...

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