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This experiment first described by [Millikan, 1913] is based on the fact that different forces act on an electrically charged oil drop moving in the homogeneous electric field of a plate capacitor (Figure 1).
PDF | Millikans oil-drop experiments are justly regarded as a major contribution to twentieth-century physics [1, 2]. They established the quantization... | Find, read and cite all the...
THEORY. In this experiment you will use tiny droplets of oil. When these droplets fall under the influence of gravity it takes them only a few milliseconds to reach a terminal (constant) speed vf, where the downward force of gravity is balanced by the upward drag force from the air.
forces act on an electrically charged oil drop moving in the homogeneous Robert A. Millikan electric field of a plate capacitor (Fig.1). Going through the capillary of the around 1923 atomizer, the oil droplets acquire electric charge due to friction. The effect is known as triboelectric charging.
elementary positive and negative electric charges (“atoms of electricity”) 1897: J.J. Thompson shows particle nature of “cathode rays” emitted in vacuum tubes. Universal negatively-charged particles from vacuum tubes, radioactivity, ... Measured charge-to-mass ratio (e/m) via magnetic deflection.
MILLIKAN OIL DROP EXPERIMENT. INTRODUCTION. In this experiment you will experimentally determine the quantum nature of charge. Robert Millikan was awarded the Nobel Prize in physics in 1923 for this brilliant experiment. A simplistic schematic of his apparatus is shown below.
Oil drop experiment. Robert A. Millikan.. (1909). q=1.5924(17)×10−19 C. Shot noise experiment. First proposed by Walter H. Schottky. In terms of the Avogadro constant and Faraday constant. =. F-Faraday constant, NA - Avagadro constant.
