Question

Relative permittivity and permeability of a material are \( \varepsilon_r \) and \( \mu_r \), respectively. Which of the following values of these quantities are allowed for a diamagnetic material?

• A. \( \varepsilon_r = 0.5, \mu_r = 1.5 \)
• B. \( \varepsilon_r = 1.5, \mu_r = 0.5 \)
• C. \( \varepsilon_r = 0.5, \mu_r = 0.5 \)
• D. \( \varepsilon_r = 1.5, \mu_r = 1.5 \)

Hint:

For diamagnetic materials, remember \(\mu_r<1\) and \(\varepsilon_r>1\). This helps distinguish them from other types of materials.