Assertion: Bending a wire does not affect ele | vedclass

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(B) The resistance of a wire is given by the formula $R = \rho \frac{L}{A}$,where $\rho$ is the resistivity of the material,$L$ is the length,and $A$

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If both Assertion and Reason are correct,but Reason is not the correct explanation of Assertion.

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(B) The resistance of a wire is given by the formula $R = \rho \frac{L}{A}$,where $\rho$ is the resistivity of the material,$L$ is the length,and $A$ is the cross-sectional area.Resistivity $\rho$ is an intrinsic property of the material and does not depend on the geometry or shape of the wire.When a wire is bent,its length $L$,cross-sectional area $A$,and resistivity $\rho$ remain unchanged.Therefore,the electrical resistance $R$ remains constant.While the Reason statement is a true physical fact (resistance is proportional to resistivity),it does not explain why bending the wire does not change the resistance (which is due to the geometry remaining constant). Thus,both are correct,but the Reason is not the correct explanation of the Assertion.

Assertion: Bending a wire does not affect electrical resistance.
Reason: Resistance of a wire is proportional to the resistivity of the material.

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Assertion: Bending a wire does not affect electrical resistance.Reason: Resistance of a wire is proportional to the resistivity of the material.