The value of permittivity of vaccum is `8.85 xx 10^(-12) C^(2)N^(-1) m^(-2)` and the dielectric constant of water is 81. So the permittivity of water will be………`C^(2)N^(-1)m^(-2)`.

Options

A. `81 xx 8.86 xx 10^(-12)`
B. `8.86 xx 10^(-12)`
C. `(8.86 xx 10^(-12))/81`
D. `81/(8.86 xx 10^(-12))`

Answer

A

Explanation

`rArr epsilon/epsilon_(0) = K`
`therefore epsilon = Kepsilon_(0) = 81 xx 8.86 xx 10^(-12) C^(2)N^(-1)m^(-2)`