Robert Milikan
Robert Millikan went to the University of Chicago; he succeeded in measuring the charge of an electron. Millikan sprayed oil droplets onto the apparatus. He then used x-rays to give the droplets a negative charge. As the droplets fall between two electrically charged plates,
it changed the droplets rate of fall. From the data that he collected he calculated that the charge on every oil droplet is a multiple of 1.6 x 10^-19 coulomb, it must be charged for a single electron. Using this value, electron charge to mass ratio, calculated mass of an electron id to be 9.11 x 10^-28 gram.
it changed the droplets rate of fall. From the data that he collected he calculated that the charge on every oil droplet is a multiple of 1.6 x 10^-19 coulomb, it must be charged for a single electron. Using this value, electron charge to mass ratio, calculated mass of an electron id to be 9.11 x 10^-28 gram.