Question

why does the resistance of a wire vary with its area of cross section ​

Answer 1

The resistance of a conductor isinversely proportional to its area of cross section. A dummy approach: The concept of current flow in a conductor is analogous to liquid flow in a pipe. ... As the amount of current flowing at constant voltage increases with increase in cross sectional area, resistancedecreases.

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Answer 2

HeRe Is Your Ans ⤵

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The resistance of a wire vary with its area of cross section Because resistance is inversely proportional to its cross-sectional area

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