Specific charge is defined as charge by mass ratio. The charge on proton is 1.602 X 10 -19 The mass of proton is 1.673 X 10 -27 Specific charge= Charge/Mass = 1.602 x 10 -19 / 1.673 x 10 -27 = 9.567 X 107 C / Kg Hence, specific charge on proton is 9.567 X 107 C / Kg
