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Why copper is used to make connecting wi...

Why copper is used to make connecting wires ?

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Electric Current, Resistance and E.M.F. -Exercise
  1. How does the conductivity of metals varies with the rise in their temp...

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  2. Why Eureka metal is used to make standard resistance coil?

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  3. Why copper is used to make connecting wires ?

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  4. How does the conductivity of semi-conductors varies with the rise in t...

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  5. Why Manganin is used to make standard resistance coil ? How does the e...

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  6. Define one Ampere of current.

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  7. What is the resistance of an ideal voltmeter and an ammeter?

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  8. The specific resistance of a conductor increases with Increase in temp...

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  9. The specific resistance of a conductor increases with Increase in cros...

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  10. The specific resistance of a conductor increases with Decrease in leng...

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  11. The specific resistance of a conductor increases with Increase in cros...

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  12. Why the fuse wire should have high resistance and low melting point?

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  13. Why the fuse wire should have high resistance and low melting point?

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  14. A fuse wire is a wire of Low resistance and high melting point.

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  15. Why the fuse wire should have high resistance and low melting point?

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  16. One kilowatt hour is equal to

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  17. Which out of the following is used to make standard resistance

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  18. The rings on carbon resistance have colours in the sequence Red,Yellow...

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  19. With increase in temperature, resistance of metals :

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  20. For alloys the value of temperature coefficient of resistance is very ...

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