Q. The value of temperature coefficient of resistance depends upon …………….?

A
The volume of the material
B
The Length of the material
C
The cross-sectional area of the material
D
Nature of the material and temperature.
Solution:

The resistance-change factor per degree Celsius of temperature change is called the temperature coefficient of resistance. This factor is represented by the Greek lower-case letter ?alpha? (a). A positive coefficient for a material means that its resistance increases with an increase in temperature.

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