Assertion :Ohm's law is not valid if current depends on voltage non-linearly. Reason: Ohm's law is a fundamental law of nature.

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 C Assertion is correct but Reason is incorrect
Ohm's law is not a fundamental law of nature. It fails in the following conditions.
(i) voltage depends on current non linearly.
(ii) the relation between voltage and current depends on the sign of voltage for the same absolute value of voltage.
(iii) the relation between voltage and current is not unique.

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