Question

Relative permittivity and permeability of a material are ${\epsilon }_1$ and ${\mu }_1$ respectively. Which of the following values of these quantities are allowed for a diamagnetic material?

• A. ${\epsilon }_r=1.5,{\mu }_r=0.5$
• B. ${\epsilon }_r=0.5,{\mu }_r=0.5$
• C. ${\epsilon }_r=1.5,{\mu }_r=1.5$
• D. ${\epsilon }_r=0.5,{\mu }_r=1.5$

Answer 1

The correct option is A ${\epsilon }_r=1.5,{\mu }_r=0.5$

For a diamagnetic substance,
${\epsilon }_r>1,{\mu }_r<1$