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

Options

A. If both assertion and reason are true and reason is the correct explantion of assertion.
B. If both assertion and reason are true and reason is not the correct explantion of assertion.
C. If assertion is false but reason is true.
D. If assertion is true but reason is false.

Answer

C

Explanation

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