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How many electrons pass through alamp inone minute if current flowing in lamp is 200mA ?

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Electric Current, Resistance and E.M.F. -Exercise
  1. A wire with an area of cross-section as 1 mm2 has a resistance of 10Q,...

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  2. Given three resistors of resistances 1Q (Ohm), 2Q (Ohm) and 3Q (Ohm). ...

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  3. How many electrons pass through alamp inone minute if current flowing ...

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  4. How does the conductivity of metals varies with the rise in their temp...

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

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  6. Why copper is used to make connecting wires ?

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

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

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  9. Define one Ampere of current.

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

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

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

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

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

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

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

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

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

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  19. One kilowatt hour is equal to

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

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