Question
In Millikan’s oil-drop experiment, one looks at a small oil drop held motionless between two plates. Take the voltage between the plates to be 2033 V, and the plate separation to be 2.00 cm. The oil drop (of density $0.81 \textrm{ g/cm}^3$) has a diameter of $4.0 \times 10^{-6} \textrm{ m}$ . Find the charge on the drop, in terms of electron units.
16 charge units.
Note: at around 1:33 in the video I say "density", but I should be saying "diameter" of the droplet. The closed captions have the corrected text.
Solution Video