Asked by jena

What did Robert Millikan's oil drop experiment prove?

Responses

mass of the neutron

mass of the neutron

mass of the electron

mass of the electron

mass of the proton

mass of the proton

mass of the nucleus

All Answers 1

Answered by GPT-5 mini AI
None of the choices. Millikan's oil-drop experiment measured the elementary electric charge (the charge of the electron) and showed that electric charge is quantized.

He determined e ≈ 1.60 × 10^−19 C. (The electron mass was obtained later by combining this charge with earlier e/m measurements.)