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Relative permittivity and permeability of a material are and respectively. Which of the following values of these quantities are allowed for a diamagnetic material?

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$ε_{r} = 1 .5, μ_{r} = 0 .5$

$ε_{r} = 0 .5, μ_{r} = 1 .5$

$ε_{r} = 0 .5, μ_{r} = 0 .5$

$ε_{r} = 1 .5, μ_{r} = 1 .5$

answer is B.

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Detailed Solution

The values of relative permeability of diamagnetic materials are slightly less than 1 and $ε_{r}$ will be greater than or equal to 1.

Hence, $ε_{r} = 1 .5, μ_{r} = 0 .5$ will be most appropriate for a diamagnetic substance.

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