The temperature coefficient of resistance is expressed in :
Correct answer: B. °C-1
- A. °C
- B. °C-1
- C. m°C-1
- D. None of these
Explanation
The temperature coefficient of resistance (TCR) is a measure of how much the resistance of a material changes with temperature. It is expressed in units of inverse temperature, typically degrees Celsius or Kelvin( °C-1 or K-1). The TCR is defined as the percentage change in resistance per degree Celsius of temperature change.
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Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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