Question

The relative permeability of substance ‘X’ is slightly less than one and that of substance ‘Y’ is slightly more than one. Then ______.

Options

• ‘X’ is paramagnetic and ‘Y’ is ferromagnetic.

• ‘X’ is diamagnetic and ‘Y’ is ferromagnetic.

• ‘X’ is paramagnetic and ‘Y’ is diamagnetic.

• ‘X’ is diamagnetic and ‘Y’ is paramagnetic.

Answer 1

The relative permeability of substance ‘X’ is slightly less than one and that of substance ‘Y’ is slightly more than one. Then ‘X’ is diamagnetic and ‘Y’ is paramagnetic.

Explanation:

Diamagnetic materials have μ_r < 1, paramagnetic materials have μ_r > 1. So, confirm X is diamagnetic, and Y is paramagnetic.