The resistivity of a wire depends on its
Correct answer: D. Material
- A. Length
- B. Area of cross-section
- C. Shape
- D. Material
Explanation
Material - Correct: Resistivity is a fundamental property of a material and varies for different substances, regardless of shape, length, or area.
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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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