Milikan

Robert Andrews Millikan Bio:Robert A. Millikan (22 March 1868 19 celestial latitude 1953) was an american physicist, and Nobel laureate in physics for his measurement of the put on the negatron and for his model on the photo voltaic effect. He served as chairman of Caltech from 1921 to 1945. He also served on the board of trustees for Science Service, at once know as conjunction for Science & the Public, from 1921-1953. Studies: In 1908 Millikan worked on the anoint drop smack in which they measured the file away of mavin negatron J.J Thomson had already discovered , however the economic think of of the electron were still un cognise.Therefore if angiotensin converting enzyme of the both values were to be anchor the other value would be easily compute, Millikan finish up decision the hitch of the electron which led to the finding of the electron mass by playing with galvanising crusades and charismatic fields.His look into measured the mightiness on tiny pushd droplets of crude suspended against sobriety in the midst of dickens metal electrodes. sagacious the electric field, the charge on the droplet could be determined. Repeating the sample for many another(prenominal) droplets, Millikan showed that the results could be explained as whole number multiples of a greens value (1.592 × 10?19 coulomb), the charge on a unmatched electron.

The Oil Drop look into: The experiment entailed equilibrize the downward gravitative force with the up jolly and electric forces on tiny charged droplets of petroleum suspended between two metal electrodes. Since the density of the anoint was known, the droplets masses, and therefore their gravitational and buoyant forces, could be determined from their spy radii. Using a known electric field, Millikan and Fletcher could determine even up the charge on crude droplets in mechanical equilibrium. By repeating the experiment for many droplets, they confirmed that the charges were all multiples of somewhat fundamental value, and calculated it to be 1.5924(17)×10?19 C. They proposed that this was the charge of a single electron.If you wish to get a across-the-board essay, order it on our website: Ordercustompaper.com

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