Question

What is meant by electrical resistivity of a material derive its SR unit describe an experiment to study the factors on which the resistance of a conducting wire

Answer 1

Explanation:

the electrical resistivity of material mainly depends upon four factors

1. temperature and resistance
2. nature and resistance
3. length of material and resistance
4. cross section area and resistance so from the above factors we can derive resistance R=¶L/A. ¶ rho