Question

In order to double its resistance, by how much would you have to increase the temperature of a piece of the following? (a) copper (The temperature coefficient of resistance for copper is 3.9 x 10-3 (oc)-1.) oC (b) Nichrome (The temperature coefficient of resistance for Nichrome is 4.0 x 10-4 (°c)-1.) OC

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Answer #1

Resistance depends upon the temperature of the material.

In this question resistance increases by rising the temperature.

Sol“tin R3 Cond uoto resistane at temperature T -I 2.

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