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Hall was born in Great Falls ( North Gorham ), Maine, US. Hall received his education at Johns Hopkins University, Baltimore.
The Hall effect was discovered by Dr. Hall in 1879, while working on his doctoral thesis (Physics). Hall experiments consisted of exposing thin gold leafFor alternative meanings, see gold (disambiguation Gold is a chemical element in the periodic table that has the symbol Au ( L. aurum and atomic number 79. A soft, shiny, yellow, heavy, malleable, ductile (trivalent and univalent) transition metal, gold d (and, later, using various other materials) on a glassFor eyeglasses, see spectacles The physics definition of a glass is a uniform amorphous solid material, usually produced when a suitably viscous molten material cools very rapidly, thereby not giving enough time for a regular crystal lattice to form. plate and tapping off the gold leaf at points down its length. The effect is a potential differenceIn the physical sciences, potential difference is the difference in potential between two points in a conservative vector field. In engineering, it is sometimes described as the across variable, where flux is the through variable. Production The product o (Hall voltage) on opposite sides of a thin sheet of conducting or semiconducting material (the Hall element) through which an electric currentIn electricity, current is the rate of flow of charges, usually through a metal wire or some other electrical conductor. Conventional current was defined early in the history of electrical science as a flow of positive charge, although we now know that, i is flowing. This was created by a magnetic fieldIn physics, a magnetic field is an entity produced by moving electric charges ( electric currents) that exerts a force on other moving charges. The quantum-mechanical spin of a particle produces magnetic fields and is acted on by them as though it were a applied perpendicular to the Hall element. 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 the presence of large magnetic fieldIn physics, a magnetic field is an entity produced by moving electric charges ( electric currents) that exerts a force on other moving charges. The quantum-mechanical spin of a particle produces magnetic fields and is acted on by them as though it were a strength and low temperatureTemperature is the physical property of a system which underlies the common notions of "hot" and "cold"; the material with the higher temperature is said to be hotter. General description The formal properties of temperature are studied in thermodynamics., one can observe the quantum Hall effectThe quantum Hall effect is a quantum mechanical version of the Hall effect, observed in two-dimensional systems of electrons subjected to low temperatures and strong magnetic fields, in which the Hall conductance sigma takes on the quantized values : wher, which is the quantizationwavefunctions of an electron in a hydrogen atom possessing definite energy (increasing downward: n 1,2,3,. and angular momentum (increasing across: s p d . Brighter areas correspond to higher probability density for a position measurement. The angular mom of the Hall resistance. In 1880, Hall's experimentation was published as a doctoral thesis in the American Journal of Science and in the Philosophical Magazine .
Hall was appointed as Harvard's professor of physics in 1895. Hall retired in 1921. Hall died in Cambridge, Massachusetts, US.