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Question

Dielectric constant of water is 80. What is its permittivity? 4. Name the physical quantity whose
S.I. unit is N/C.

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Solution

Dear student,
Dielectric constant k = ε/ε0

Permittivity ε = k ε0
= 80 x 8.854 x 10-12
=708 .32 x 10-12 C2 N-1 m-2

The SI unit of electric field intensity is N/C i.e Newton per Coulomb

Regards

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