Assuming that the dielectric medium is air, then, it can be expressed as: E air = σ/ε 0. An electric field’s intensity near a plane-charged conductor: E = σ/Kε 0 present in a medium of dielectric constant, K.An electric field’s intensity near a plane sheet of charge: E = σ/2ε 0K.\(\oint\) (As per the formula, the centre, x = 0 and E = 0).
