Question

Electrical resistivity of a given metallic wire depends upon -

• A. its length.
• B. its thickness.
• C. its shape.
• D. nature of the material.

Answer 1

The correct option is D nature of the material.

Electrical resistivity does not depend on the geometrical properties like length, thickness, shape etc.

It only depends on the nature of the material.

Hence, option $\left(D\right)$ is the correct answer.