Question

As the temperature of conductor increase, it's resistivity and conductivity change. The ratio of resistivity to conductivity.

Options

• Increase

• Decrease

• Remain constant

• May increase or decrease depending on the actual temperature.

Answer 1

Increase

Explanation:

The resistivity (p) of a conductor increases with temperature. We already know that electric conductivity σ = `1/p`

`p/sigma = p(1/p)` = p²

As a result, as the temperature rises, so will `p/sigma`.