Elementary Charge

Mr. Andersen explains the concept of elementary charge, the smallest unit of charge, as determined by Robert Millikan's oil drop experiment. The video covers the quantization of charge, meaning it exists in discrete units of 1.6 x 10^-19 coulombs. Millikan's experiment involved balancing oil drops in an electromagnetic field to measure this charge. The video also discusses the forces acting on the oil drops, such as gravity and air resistance, and how quarks within protons contribute to charge quantization.

How did Millikan measure the elementary charge during his experiment?

What are the charges of protons, neutrons, and electrons?