Specific resistance of a wire
Correct answer: C. will depend on the type of material of the wire
- A. will depend on its length
- B. will depend on its radius
- C. will depend on the type of material of the wire
- D. depend on none of the above
Explanation
Specific resistance (or resistivity) (ρ) is a property of the material of the wire and is independent of its length or radius. It is a constant characteristic of the material.
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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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