Resistance of a conductor depends upon:
Correct answer: D. Temperature
- A. Charge
- B. current
- C. Power
- D. Temperature
Explanation
The resistance of a conductor depends on its temperature according to the formula R = R₀(1 + αΔT), where R₀ is the initial resistance, α is the temperature coefficient of the material, and ΔT is the change in temperature.
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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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