Question

The dimensions of the relative magnetic permeability of the substance are ______.

Options

• L¹ M^-1 T¹ A¹

• L°M°T°A°

• L^-1 M^-1 T° A°

• L¹ M¹ T^-1 A°

Answer 1

The dimensions of the relative magnetic permeability of the substance are L°M°T°A°.

Explanation:

Relative magnetic permeability µ_r = `mu/mu_0`

It is the ratio of permeability of a medium to permeability of vacuum. Hence it is a dimensionless quantity.