Question

If the length of a conductor having resistivity 1.5 ✖ 10 is to power -8 ohm-m is doubled, what will be it's new resistivity?

Answer 1

resistivity remains same as it doesn't change

Answer 2

RESISTIVITY WILL REMAIN SAME.

Let's see a detailed explanation:

• Resistivity is a physical quantity which is numerically equal to the resistance of a conductor of unit length and unit cross sectional area.

• In other words, resistivity is a materialistic property and does not depend upon the dimensions of the conductor.

So, when the length of the conductor is doubled the resistivity will remain same.

$\star$ Resistivity will remain 1.5 × 10^(-8) ohm metre.