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Q.

Dielectric constant of pure water is 81. Its permittivity will be in MKS units:

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a

$7.17 \times 10^{- 10}$

b

$8.86 \times 10^{- 12}$

c

$1.02 \times 10^{13}$

d

cannot be calculated

answer is A.

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Detailed Solution

$\Rightarrow ε = {Kε}_{0} = 81 \times 8 .854 \times 10^{- 12} = 7 .17 \times 10^{- 10}$ MKS units

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Dielectric constant of pure water is 81. Its permittivity will be in MKS units: