Aarti Gupta
Last Activity: 10 Years ago
e/m refers to charge to mass ratio of electron.J.J.Thomson studied the deflection of cathode rays under the simultaneous application of electric as well as magnetic field,and this experiment leads to discovery of electrons.From the magnitudes of electric field and magnetic field applied,the value of e/m was calculated and it comes out to be-
The value of e/m = 1.758820 * 108 C/g or 1.758820 * 1011 C/Kg.