Question

who discovered charge on the electron
Some members told Millikan but I am thinking J.J Thomson because see my above attachment
e/m means charge of electron/absolute mass in the concept of charge to mass ratio of electron J.J Thomson already told charge of electron
Explain​

Answer 1

Answer:

Roberts Andrews Milliken

Explanation:

in 1909 american physicst Robert Andrews Milliken greatly improved a method employed by thomson for measuring the electron charge directly. Millikens oil' s dropped experiment, he produced microscopic oil droplets and observe them falling on the space between two electrically charged planets