Question

What is resistivity? Write the formula of resitivity. Write the SI unit of resitivity.

Answer 1

Resistivity or specific resistance is the resistance of the conductor of length 1 m and Cross-sectional area of 1 m².

It's S I unit is ohm meter.

It's donated by p and it's formula is

p = R A ÷ l

l is length.
A is area of cross-section.