The dielectric constant of `H_(2)O_(2)` is 80. The electrostatic force of attraction between `Na^(+)` and `Cl^(-)` will be

The dielectric constant of H_(2)O is 80. The electrostatic force of attraction between Na^(+) and Cl^(-) will be

The dielectric constant for H_(2)O at 18^(@)C is

On dilution of H_(2)O_(2) the value of dielectric constant-

When air is replaced by a dielectric medium of dielectric constant K, the maximum force of attraction between two charges separated by a distance

Two point charges placed in a medium of dielectric constant 5 are at a distance r between them, experience an electrostatic force ‘F’. The electrostatic force between them in vacuum at the same distance r will be-

When air is replaced by dielectric medium of constant K, the maximum force of attraction between two charges separated by distance d, ..........