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An electric bulb is rated 220 volt - 100...

An electric bulb is rated 220 volt - 100 watt. The power consumed by it when operated on 110 volt will be

A

25 watt

B

50 watt

C

75 watt

D

40 watt

Text Solution

Verified by Experts

The correct Answer is:
A
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MOTION-CURRENT ELECTRICITY-EXERCISE -3 SECTION -B (PREVIOUS YEAR PROBLEMS JEE MAIN)
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  4. The resistance of a wire is 5 ohm at 50^@C and 6 ohm at 100^@C. The re...

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  5. A 5V battery with internal resistance 2Omega and a 2V battery with int...

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  6. Consider a block of conducting material of resistivity 'rho' shown in ...

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  7. Consider a block of conducting material of resistivity 'rho' shown in ...

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  8. Statement-1: The temperature dependence of resistance is usually given...

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  9. Two conductors have the same resistance at 0^@C but their temperature ...

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  10. If a copper wire is stretched to make it 0.1% longer wha is the percen...

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  11. Two electric bulbs marked 25W-220V and 100W-220V are connected in seri...

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  12. If 400 Omega of resistance is made by adding four 100 Omega resistance...

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  13. The current in the primary circuit of a potentiometer is 0.2 A. The sp...

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  14. If a copper wire is stretched to make it 0.1% longer wha is the percen...

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  15. Two electric bulbs marked 25W-220V and 100W-220V are connected in seri...

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  16. Resistance of a given wire is obtained by measuring the current flowin...

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  17. The supply voltage to room is 120 V. The resistance of the lead wires ...

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  18. In the circuit shown here, the point C is kept connected to the point ...

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  19. In a large building, there are 15 bulbs of 40 W, 5 bulbs of 100 W, 5 f...

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  20. When 5 V potential difference is applied across a wire of length 0.1 m...

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