Question

The resistivity does not change if

(a) The material is changed

(b) The temperature is changed

(c) The shape of the resistor is changed

(d) Both material and temperature are changed​

Answer 1

Answer:

is c option

Explanation:

Resistivity of a material is the inherent property of a material . it is defined as resistance offered by unit length and unit area of cross section of that material when a known voltage is applied across the ends of the material.

this property if material depends upon only on material and the temperature.

hence shape and size of the material does effect it's value.

Answer 2

Answer:

(c) The shape of the resistor is changed

EXPLANATION

Resistivity depends on nature of the material and temperature of the material.