Question

in coulomb's law,on what factors the value of electrostatic force constant K depends?

Answer 1

The proportionality constant ‘k’ in Coulomb;'s Law is given by,

k = 1/(4πε)

ε = ε_oε_r

Where, ε_o is the permittivity of vacuum and ε_r is the relative permittivity of the medium.

ε_r = 1 for vacuum

ε_r = 88 for water

Thus, ‘k’ depends on the relative permittivity of the medium.