Question

Which expression defines relative permeability?

Options

• \[\mu_r=\frac{\mu}{\mu_0}\]

• \[\mu_r=\frac{\mu_0}{\mu}\]

• \[\mu_r=\mu\mu_0\]

• \[\mu_r=\mu+\mu_0\]

Answer 1

Relative permeability is the ratio of magnetic permeability to \[\mu_0\]. Its defining expression is \[\mu_r=\frac{\mu}{\mu_0}\].