Assertion :The resistance of a conductor decreases with increase in cross-sectional area. Reason: On increasing the cross-sectional area of a conductor, more current will flow through the conductor.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Resistance $R = ρ \frac{L}{A}$

$R \propto \frac{L}{A}$

When Area increase then R will decrease.

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