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Fig. shows three bulbs A, B and C each of rating 100 W, 220 V connected to the mains of 220 V. Answer the following: (

How is the glow of bulbs B and C affected if bulb A gets fused ?

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both unaffected
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ICSE-HOUSEHOLD CIRCUITS -EXERCISE -9(A)
  1. Name the device used to increase the voltage at a generating station.

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

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

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

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

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

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

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  8. What is the function of a fuse?

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

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

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

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

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

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

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

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

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

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

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

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  20. Two sets A and B each of four bulbs are glowing in two separate rooms....

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