5924(17)×10−19 coulombs, astonishingly close to the currently accepted value of 1. Mechanics and Methodology The brilliance of Millikan's design lies in its deceptive simplicity, relying on principles of mechanics and electrostatics that were well understood but never so precisely applied.
Why Millikan Oil Drop Experiment Still Matters: Precision in Quantifying the Electron Charge
The meticulous compilation of this data resulted in a value of 1. Thomson's discovery of the electron in 1897 proved that charged particles existed, but the magnitude of their charge was entirely unknown.
The droplets could carry 1e, 2e, 3e, or other multiples of the elementary charge, but never a fractional value of that base unit. This conceptual leap provided the framework for translating the abstract nature of electricity into a quantifiable value.
Why Millikan Oil Drop Experiment Still Matters
Using this mass and the known strength of the electric field, they could solve for the charge (q) using the simple equation qE = mg, where E is the electric field, m is the mass, and g is the acceleration due to gravity. Millikan observed that the charges measured were not continuous but were always integer multiples of a single, smallest value.
More About Millikan's oil drop experiments
Looking at Millikan's oil drop experiments from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on Millikan's oil drop experiments can make the topic easier to follow by connecting earlier points with a few simple takeaways.
