Question

Assertion : When a wire of resistivity X is pulled to double its length ,its resistivity remains the same.


Reason : Resistivity depends on the nature of material.
a) both A and R are true and R is the correct explanation of A .

b) both A and R are correct and R is not the correct explanation of A .

c) A is true but R is false.

d) A is false but R is true.​

Answer 1

Answer:

a) both A and R are true and R is the correct explanation of A .

Explanation:

Resistivity depends on the material used not on the shape, size of the body so resistivity is remained same .

Answer 2

Explanation:

a) both A and R are true and R is the correct explanation of A .