In this experiment Robert Millikan and Harvey Fletcher discovered the charge of an electron.
Concept: Millikan Oil Drop Experiment Concept 14m
Concept: Millikan Oil Drop Experiment Concept 24m
The mass of an electron was determined by which of the following famous experiments?
A. Millikan's oil drop experiment
B. Thomson's cathode ray tube experiment
C. The discovery of radioactive emissions by Rutherford
D. Rutherford's gold foil experiment
E. First Law of Thermodynamics
What do Thomson’s investigation of cathode rays, Millikan’s oil-drop experiment, and Rutherford’s investigation of alpha, beta, and gamma radiation have in common?
a) Use of electrically charged plates
b) Use of radioactive sources
c) Direct observation of sub-atomic particles
d) Investigation of the nucleus
e) Each experiment is a scientific law