Describe Millikan's Oil Drop Experiment

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SUMMARY

Millikan's Oil Drop Experiment successfully determined the charge of the electron and the mass of an oil drop. Millikan calculated the mass using the formula mass = volume x density, assuming a spherical shape for the oil drop. He eliminated the radius of the drop by conducting multiple experiments, which allowed for accurate measurements. This foundational experiment provided critical insights into atomic structure and the quantization of electric charge.

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  • Understanding of basic physics concepts, particularly electromagnetism.
  • Familiarity with the principles of density and volume calculations.
  • Knowledge of experimental methods in physics.
  • Basic grasp of atomic theory and the structure of matter.
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  • Study the methodology of Millikan's Oil Drop Experiment in detail.
  • Explore the concept of quantization of electric charge and its implications in modern physics.
  • Learn about the historical context and significance of Millikan's findings in the development of atomic theory.
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Students of physics, educators teaching atomic structure, and researchers interested in historical experiments that shaped modern scientific understanding.

jayjay713
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How did he determine the mass of an oil drop and the charge of the electron?
 
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As regards the mass of the drop i think that he used

mass = volume x density

and assumed a spherical shape, knowing the density of the oil, and eliminating the radius r of the drop by doing more than one experiment.
 

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