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प्रश्न
How does the resistance of a metallic wire depend on the thickness of wire?
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उत्तर
The resistance of a wire decreases with increase in its thickness (R ∝ l/a where a = πr2, the area of cross-section of the wire).
संबंधित प्रश्न
Complete the following :-
(c)
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- the p.d. across the internal resistance of the cell,
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