Relative permittivity and permeability of a material ${\varepsilon _r}$ and ${\mu _r},$ respectively. Which of the following values of these quantities are allowed for a diamagnetic material?
${\varepsilon _r} = 0.5,\,\,{\mu _r} = 1.5$
${\varepsilon _r} = 1.5,\,\,{\mu _r} = 0.5$
${\varepsilon _r} = 0.5,\,\,{\mu _r} = 0.5$
${\varepsilon _r} = 1.5,\,\,{\mu _r} = 1.5$
Solution
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