What will be the resistance of the wire at 100o C if the temperature coefficient of resistance is 0.0038 per o C ?

Posted on 2013-12-05 13:47:00 in Engineering by GEORGE

The specific resistance of platinum at 0o C is 10.3µ ?-cm. How long must a wire of 32 S.W.G. (diameter = 0.0274 cm) platinum be to have a resistance of 4? at 0o C ? what will be the resistance of the wire at 100o C if the temperature coefficient of resistance is 0.0038 per o C ?

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