Question

resistivity kya hai​

Answer 1

Answer:

it is defined as the resistance offered by a cube of a material of side 1 m when current flows perpendicular to its opposite faces.

Answer 2

Resistivity of substance is equal to the resistance of substance having a length of 1m and area of Cross section

${ 1m}^{2}$

$rho = \frac{r \times a}{l}$

rho is the constant for resistivity

r = resistance

a = area of Cross section

l = length

S.I. UNIT - OHM METER