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.

Answer 1

The Correct Option is B

The relative permittivity \((\varepsilon_r)\) and relative permeability \((\mu_r)\) for a diamagnetic material must satisfy the conditions \(\mu_r<1\) and \(\varepsilon_r>1\). Given the options, \(\varepsilon_r = 1.5\) and \(\mu_r = 0.5\) adhere to these requirements. Final Answer:\[\boxed{\varepsilon_r = 1.5, \mu_r = 0.5}\]