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An electric heater is connected to the 2...

An electric heater is connected to the 230V mains supply. A current of 8A flows through the heater.
(a) How much charge flows around the circuit each second?
(b) How much energy is transferred to the heater each second?

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The correct Answer is:
(a) 8C (b) 1840 J
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LAKHMIR SINGH & MANJIT KAUR-ELECTRICITY -Exercise
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  7. Name the physical quantity whose unti is ''ohm''.

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  8. The substance having infinitely high electrical resistance is called:

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  9. Keeping the resistance constant, the potential difference applied acro...

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  10. State the factors on which the strength of electric current flowing in...

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  12. Keeping the resistance constant, the potential difference applied acro...

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  14. A resistance of 20 ohms has a current of 2 amperes flowing in it. What...

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  15. A current of 5 amperes flows through a wire whose ends are at a potent...

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  16. Fill in the following blank with a suitable word: Ohm's law states a...

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  17. Distinguish between good conductors, resistors and insulators. Name tw...

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  18. Which of the following are conductors and which are insulators? Sul...

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  19. What is Ohm's law? Explain how it is used to define the unit of resist...

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  20. (a) What is meant by the ''resistance of a conductor''? Write the rela...

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