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Edwin Hall’s discovery that Tuesday in late October of 1879, which came to be called the Hall effect, may be one of the most underappreciated achievements in the history of Hopkins. Over the past 140 years, the Hall effect has become an indispensable tool for measuring the strength of electromagnetic fields.
Edwin Herbert Hall (November 7, 1855 – November 20, 1938) was an American physicist, who discovered the electric field Hall effect. Hall conducted thermoelectric research and also wrote numerous physics textbooks and laboratory manuals.
23 paź 2024 · Hall used a thin gold foil and in 1879 detected for the first time an electric potential acting perpendicularly to both the current and the magnetic field. The effect has since been known as the Hall effect.
An annotated transcript of Edwin Hall’s notebook account of his 1879 laboratory investigations of the transverse effect of a magnetic field applied at right angle to the direction of electric current in a conductor.
11 sie 2024 · By studying the Hall effect, scientists can learn important information about the charge carriers, such as electrons, within the material. This effect was discovered by American Physicist Edwin Hall in 1879.
Edwin H. Hall came to Harvard in 1881 after completing a PhD at the Johns Hopkins University, where he discovered the effect which bears his name. At Harvard he turned to research on thermo-conductivity, thermodynamic behavior of liquids, and thermoelectricity.
Edwin Hall’s experiment, performed almost exactly one hundred years ago, had an elegant simplicity to it. A current from a carbon-zinc battery was passed through a strip of gold foil (2 cm. × 9 cm.) fixed firmly on a glass plate by means of brass clamps.
