A Level Physics Electric Fields - practice paper Mass of electron: 9 x 10 -31 kg | Charge of electron: 1.6 x 10 -19 Mass of proton: 1.7 x 10 -27 | Permittivity of air: 8.854 x 10 -12 State Coulomb’ Law. Sketch a graph of the force against the reciprocal of the square of the distance between the two charges…
