JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Assertion: Resistivity of metals decreases with decrease in temperature but have some finite value as the temperature approaches absolute zero.
Reason: The residual resistivity near absolute zero is caused primarily by the collision of electrons with impurities and imperfections in the metal.

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Correct option: A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion

Option A is correct because both the Assertion and Reason are true, and the Reason correctly explains why metals have a finite resistivity at absolute zero due to impurities and imperfections.

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