Physics Electricity CBSE Board 2025 Easy
The resistivity of a wire made of an alloy is generally:
The resistivity of a wire made of an alloy is generally :
- (a)Lower than that of its constituent metals.
- (b)Higher than that of its constituent metals.
- (c)Decreases with increase in its area of cross-section.
- (d)Increases with increase in its length.
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