Physics-Resistance & Resistivity
NEET Physics Resistance & Resistivity Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 12
Assertion (A): The resistance of a conductor is directly proportional to its length and inversely proportional to its cross-sectional area. | Reason (R): Resistivity is a property of the material and depends on temperature and pressure.
A
Both A and R are true, and R is the correct explanation of A.
B
Both A and R are true, but R is not the correct explanation of A.
C
A is true, but R is false.
D
A is false.
Correct Answer
Option B
Detailed Explanation
While both statements are true, resistivity being a property dependent on temperature and pressure does not explain why resistance is proportional to length and inversely proportional to area.
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