Question

What is the meaning when relative permitivity of water is 81?

Answer 1

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•Relative permittivity (also called dielectric constant) of a medium is the ratio of the absolute permittivity of the medium to that of the permittivity of free space.

•Relative permittivity of water is 81 means: an electric field that has strength E in vacuum will have strength E/81 inside water.

Answer 2

Answer:

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