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Two sets A and B each of four bulbs are ...

Two sets A and B each of four bulbs are glowing in two separate rooms. When one of the bulbs in set A is fused, the other three bulbs also cease to glow. But in set B, when one bulb fuses, the other bulbs continue to glow. (i) Explain the difference in the two sets. (ii) Which set of arrangement is preferred in housing circuit and why ?

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### Step-by-Step Solution: **(i) Explain the difference in the two sets.** 1. **Understanding Set A:** - In set A, the bulbs are connected in **series**. This means that the current flows through each bulb one after the other. - When one bulb in set A fuses (breaks), it creates an open circuit. This interruption stops the flow of current to all the bulbs in the series, causing all of them to go out. ...
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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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