Question #299876

The relative permittivity of a dielectric is 2.25

a) what is its permittivity?

b)What will be the capacitance if its dielectric is inserted into 7.8 uFair capacitor?


1
Expert's answer
2022-02-20T17:13:14-0500

Answer

a) so permittivity of dielectric

ϵ=ϵ0ϵr=8.85×1012×2.25=19.91×1012C2/m2.N\epsilon=\epsilon_0 \epsilon_r\\=8.85\times10^{-12}\times2.25\\=19.91\times10^{-12}C^2/m^2.N

b) capacitance become

C=2.25×7.8μF=17.55μFC'=2.25\times7.8\mu F\\=17.55\mu F





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