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At what voltage is the alternating curre...

At what voltage is the alternating current supplied to our houses ?

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ICSE-HOUSEHOLD CIRCUITS -EXERCISE -9(A)
  1. In the transmission of power the voltage of power generated at the gen...

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  2. Explain with the aid of a simple diagram, the transmission of electric...

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  3. At what voltage is the alternating current supplied to our houses ?

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  4. At what frequency is A.C. supplied to residential houses ?

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  5. Name the device used to increase the voltage at a generating station.

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  6. Name the device used to decrease the voltage at the sub station for...

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  7. Name the three connecting wires used in a household circuit.

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  8. Which of the two wires mentioned in part (a) are at the same potentia...

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  9. Name the wire in a household electrical circuit to which the switch is...

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  10. What is the pole fuse ? Write down its current rating.

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  11. State the function of each of the following in a house circuiting: ...

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  12. What is the function of a fuse?

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  13. State the function of each of the following in a house circuiting: ...

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  14. In what unit does the domestic electric meter measures the electrical ...

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  15. The main fuse is connected to the ………..

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  16. State one advantage of using the main switch in house wiring.

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  17. Draw a circuit diagram to explain the ring system of house wiring. Sta...

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  18. Draw a labelled diagram with the necessary switch, regulator, etc. to ...

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  19. How should the several electric lamps be connected with the mains so t...

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  20. Fig. shows three bulbs A, B and C each of rating 100 W, 220 V connect...

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