Oil Drop Experiment — Overview & Importance

The smallest charge that an oil drop can contain must be $3.2\cdot10^{-19}$C

The smallest charge that an oil drop can contain might be $3.2\cdot10^{-19}$C

From this experiment only, we know for sure that the smallest charge that an oil drop can contain is $1.6\cdot10^{-19}$C

From this experiment only, we know for sure that the charge of an electron is $1.6\cdot10^{-19}$C