Answer the following questions related to resistance and resistivity:
PHYSICS · Multi-part · CBSE · Physics · Current Electricity · Current Electricity
Problem
Answer the following questions related to resistance and resistivity:
(i) Define resistivity and state its SI unit.
(ii) Distinguish between resistance and resistivity on any two points.
(iii) Two straight wires, one of copper and the other of nichrome, have the same length and diameter. Which wire will offer greater resistance to the flow of current? Give reason based on the property discussed in part (i).