A potential difference of 300 V is applied between the plates of a plane capacitor spaced 1cm apart. A plane parallel glass plate with a thickness of 0.5 cm and a plane parallel paraffin plate with a thickness of 0.5 cm are placed in the space between the capacitor plates find : (i) Intensity of electric field in each layer. (ii) The drop of potential in each layer. (iii) The surface charge density of the charge on capacitor the plates Given that `K_(glass )= 6,k_(pruffin ) =2`

Answer

` (i) 1.5 xx 10^(4) V//m, 4xx5 10 ^(4) V//m (ii) 75 V, 225 V,(iii) 8xx 10 ^(-7) C//m^(2) `