Edwin Hall
Edwin Herbert Hall (Great Falls, Maine), November 7, 1855 - Cambridge (Massachusetts), November 20, 1938) was an American physicist.
Hall is famous for discovering the Hall effect. The Hall effect means that if a current flows through a magnetic field, a potential difference is generated perpendicular to the magnetic field. By measuring this potential difference, the strength of the magnetic field can be determined. biography
Hall was born on November 7, 1855 in the town of Great Falls in Maine state in the United States. At his 24th (in 1879), he discovered his hallmark, known for his dissertation, under the guidance of Henry Augustus Rowland. These findings were published in the American Journal of Science and in "Philosophical Magazine" in 1880. Hall wanted to find out, in response to a question from Maxwell, whether the resistance of a wire through which electricity flows changes under the influence of a magnet. Hall became Professor of Physics at Harvard in 1895. He remained in office until his retirement in 1921. In 1938 he died in Cambridge in the state of Massachusetts.
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