NEET Physics Wheatstone Bridge Assertion Reason Question
Assertion (A): The resistance of a platinum wire thermometer increases with temperature. | Reason (R): In metals, resistivity is inversely proportional to the average time between collisions of electrons.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
The resistance of a platinum wire increases with temperature due to the increase in resistivity, which is inversely related to the average time between collisions of electrons, as stated in the NCERT context.
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