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Name the physical quantity whose unti is...

Name the physical quantity whose unti is ''ohm''.

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Electrical resistance
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LAKHMIR SINGH & MANJIT KAUR-ELECTRICITY -Exercise
  1. Name the law which relates the current in a conductor to the potential...

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  2. What do you mean by electrical resistance ? How does it arise ? Give i...

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  3. Name the physical quantity whose unti is ''ohm''.

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

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

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

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  7. Which has less electrical resistance: a thin wire or a thick wire (of ...

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

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  9. A potential difference of 20 volts is applied across the ends of a res...

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

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

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

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

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

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

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

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  17. (a) Define the unit of resistance (or Define the unit ''ohm''). (b) ...

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  18. (a) Why do electricians wear rubber hand gloves while working with ele...

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  19. (a) Name an instrument that measures electric current in a circuit. De...

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  20. (a) What is the ratio of potential difference and current known as? ...

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