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A resistance of a tungsten filament at 1...

A resistance of a tungsten filament at `150^@C` is `133Omega`.What will be its resistance at `500^@C` ? The temperature coefficient of resistance of tungsten at `0@C` is `0.0045@C^-1`.

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Electric Current, Resistance and E.M.F. -Exercise
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  3. A resistance of a tungsten filament at 150^@C is 133Omega.What will be...

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  13. Why copper is used to make connecting wires ?

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

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  16. Define one Ampere of current.

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

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