Resistance of a wire on increasing its temperature will
Correct answer: A. increase with rise in temperature
- A. increase with rise in temperature
- B. decrease with rise in temperature
- C. will remain the same
- D. depends upon altitude of experimentation
Explanation
The resistance of a wire generally increases with an increase in temperature. This phenomenon is described by the temperature coefficient of resistance α.
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About Current Electricity
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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