Question

Relative permittivity and permeability of a material are ε_r and  μ_r, respectively. Which of the following values of these quantities are allowed for a diamagnetic mateiral?
(a) ε_r = 1.5, μ_r = 1.5
(b) ε_r = 0.5, μ_r = 1.5
(c) ε_r = 1.5,  μ_r = 0.5
(d) ε_r = 0.5, μ_r = 0.5.

Answer 1

Correct Option(c) ε_r = 1.5,  μ_r = 0.5

Explanation:

For diarnagnetic material, 0< μ_r <1 and for any material, ε_r>1.