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When an electric lamp is connected to 12...

When an electric lamp is connected to 12V battery, it draws a current of 0.5A. The power of the lamp is:

A

0.5W

B

6W

C

12W

D

24W

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The correct Answer is:
B
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LAKHMIR SINGH & MANJIT KAUR-ELECTRICITY -Exercise
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  2. (a) What is meant by "electric power"? Write the formula for electric ...

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  3. When an electric lamp is connected to 12V battery, it draws a current ...

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  4. The unit for expressing electric power is:

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  5. Which of the following is likely to be the correct wattage for an elec...

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  6. An electric heater is rated at 2 kW. Electrical energy costs Rs 4 per ...

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  7. Unit of energy is SI system is

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  8. Commercial Unit Of Energy

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  9. How much energy does a 100W electric bulb transfer in 1 minute?

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  10. An electric kettle for use on a 230V supply is rated at 300 W. for saf...

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  11. How many joules of electrical energy are transferred per second by a 6...

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  12. At a given time, a house is supplied with 100A at 220V. How many 75W, ...

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  13. If the potential difference between the ends of a fixed resistor is ha...

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  14. State whether an electric heater will consume more electrical energy o...

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  15. The table below shows the current in three different electrical applia...

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  16. A boy noted the readings on his home's electricity meter on Sunday at ...

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  17. Several electric bulbs designed to be used on a 220 V electric supply ...

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  18. Two exactly similar electric lamps are arranged (i) in parallel, and (...

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  19. How does the heat H produced by a current passing through a fixed resi...

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  20. The current passing through an electric kettle has been doubled. The h...

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