Answer to Question #218295 in Electricity and Magnetism for Anita

Question #218295

Seawater has epsilon r = 80. Its permittivity is

(a) 81

(b) 79

(c) 5.162 x 10^-10 F/m

(d) 7.074 x 10^-10 F/m



1
Expert's answer
2021-07-20T15:05:42-0400

Gives

ϵ0=8.85×1012c2/Nm2\epsilon_0=8.85\times10^{-12}c^2/Nm^2

ϵr=80\epsilon_r=80

We know that

ϵ=ϵ0ϵr\epsilon=\epsilon_0\epsilon_r


ϵ=8.85×1012×80=7.074×1010F/m\epsilon=8.85\times10^{-12}\times80=7.074\times10^{-10}F/m

Option (D) is correct option


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