Question

A substance a has resistivity 10^12 ohm m . thus it must be _______.

Answer 1

Answer:

Bakelite

Explanation:

Resistivity ρ of a conductor is given by

$\boxed{\rho=RA/L}$

where

R is the resistance of the conductor (ohm)

A is the area of cross section of the conductor (m²)

L is the length of the conductor (m)

If the resistivity of a material is as high as 10¹² Ωm then the material must be an insulator

The resistivity chart shows that the material may be bakelite as the resistivty of bakelite is 10¹²Ωm

Hope the answer is helpful.