Physics

Problem

Which of the following best defines the magnetic permeability

\mu

of a material? a) The ratio of magnetizing field strength

H

to magnetic flux density

B

within the material b) The permeability is the universal constant

\mu_{0}=4\pi\times10^{-7}\,\text{H/m}

, independent of the material c) The ratio of magnetic flux density

B

to magnetizing field strength

H

within the material d) The ratio of magnetic flux density

B

to magnetization

M

within the material