The fractional change in resistance per kelvin is known as:
Correct answer: A. Temperature coefficient of resistance
- A. Temperature coefficient of resistance
- B. Thermal coefficient
- C. Linear coefficient of expansion
- D. Volumetric coefficient of expansion
Explanation
The fractional change in resistance per kelvin is called the temperature coefficient. The resistance coefficient, abbreviated as K, a dimensionless number, is how much resistance to the flow an obstacle has. The volumetric coefficient increases in volume per unit original volume per Kelvin rise in temperature is called the coefficient of volumetric expansion. The ratio increase in length original length for the 1-degree rise in temperature is called the coefficient of linear expansion
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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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