The temperature coefficient of resistance is expressed in:
Correct answer: B. °C-1
- A. °C
- B. °C-1
- C. m0C-1
- D. None of these
Explanation
Correct option is B.The temperature coefficient of resistance (TCR) measures the change in resistance expressed in degrees Celsius. Thus, the temperature unit is °C-1.
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About Temperature Coefficient of Resistivity
Temperature coefficient of resistivity describes how a material's resistivity changes for each degree change in temperature. Questions use the relation between resistance, temperature and the coefficient, especially for metallic conductors with positive values and semiconductors with negative values. Resistivity is a material property, unlike resistance, which also depends on dimensions.
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