Hall conducted thermoelectric research and also wrote numerous physics textbooks and laboratory manuals.

[1] He did his graduate schooling and research, and earned his Ph.D. degree (1880), at the Johns Hopkins University where his seminal experiments were performed.

The ratio of the voltage created to the amount of current is known as the Hall resistance, and is a characteristic of the material in the element.

In 1880, Hall's experimentation was published as a doctoral thesis in the American Journal of Science and in the Philosophical Magazine.

Hundreds of millions are sold every year and are present in a large number of devices, including high efficiency electric propulsion systems on spacecraft.