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Each of two electric lamps of power 500 ...

Each of two electric lamps of power 500 W is designed to work in 220 V line . If the lamps are connnected in series and the combination is connected to 110 V line , what will be the power of each lamp ?

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The correct Answer is:
31.25 W
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CHHAYA PUBLICATION-ELECTRIC ENERGY AND POWER-Problem Set - I
  1. An electric bulb is marked 100 w - 230 V . How much energy is produced...

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  2. A current of 5 A flows through an electric press of resistance 44Omega...

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  3. An electric bulb rated for 500 watt at 100 volt is connected to a 200 ...

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  4. Two resistances 2Omega and 6Omega are connected in parallel and the co...

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  5. Two resistances 2Omega and 6Omega are connected in series and the comb...

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  6. If the voltage of supply line drops to 180 V , what will be the power ...

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  7. Two electric lamps marked 110V- 60W and 110V - 100W are connected in ...

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  8. Each of two electric lamps of power 500 W is designed to work in 220 V...

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  9. In a Wheststone bridge P=20 Omega,Q=10Omega,R=10Omegaand S=5Omega. . ...

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  10. An electric heater is marked 110 V - 550 W and it is to be used in 200...

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  11. An electrical circuit contanis an electrical appliance od reasistance ...

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  12. Two wires of same measurements are taken . The ratio of specific resia...

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  13. The ratio of resitance in the fourn arms of a Wheatstone bridge is 3...

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  14. A fuse wire of radius 0.1 mm can withstand a maximum current of 1 A . ...

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  15. Two electric lamps marked 110V- 60W and 110V - 100W are connected in ...

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  16. A 110V -550W hearter is to be used with a 220V mains. What is the mini...

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  17. How many 60 W bulbs may be safely run on 220 v using a 5 A fuse?

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  18. If 10 bulbs of 40 each and 3 of 100w each run on the average for 5 hou...

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  19. In a house there are 10 lamps of 40 W each , 5 fans of 80 W each and a...

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  20. The main meter of a house contains a 5A fuse. 4 lamps rated 220V- 60 w...

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