Question

Find the correct combination regarding relative permeability and magnetic susceptibility of a paramagnetic substance.

(a) μr > 1, χ < 0

(b) μr < 1, χ > 0

(c) μr < 1, χ < 0

(d) μr > 1, χ > 0

The question was asked by my college director while I was bunking the class.

Origin of the question is Magnetic Properties of Materials in portion Magnetism and Matter of Physics – Class 12

Answer 1

The correct option is (d) μr > 1, χ > 0

The explanation is: The correct combination for paramagnetic substances is given as follows:

μr > 1, χ > 0

Paramagnetic materials have a small and positive value of magnetic susceptibility (χ). The relative permeability (μr) of paramagnetic materials is just greater than 1.