The relative permittivity of water is 81. If ε₀ and ε are permittivities of vacuum and water respectively, then
find ε₀
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Answer:
The relative permittivity is defined by:
ϵ
rel
=
ϵ
0
ϵ
w
=81
Hence, ϵ
w
=81×ϵ
0
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