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You can change your ad preferences anytime. Robert andrews millikan. Upcoming SlideShare. Like this presentation? Why not share! Embed Size px. Start on. Show related SlideShares at end. WordPress Shortcode. Published in: Education. Full Name Comment goes here. Are you sure you want to Yes No. Rajan Khairwar. No Downloads. Views Total views. Actions Shares. Embeds 0 No embeds. No notes for slide. Robert andrews millikan 1. The oil droplets picked up a charge due to friction with oxygen molecules.
Then the oil drops were subjected to electric field. Einstein's equation was verified. Robert Andrews Millikan Hutchinson's Biography Database, 1. Retrieved from History Reference Center database. Millikan Explains Cosmic Rays. Great Scientific Achievements p. You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later.
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File:Simplified scheme of Millikan’s oil-drop experiment.png
He also determined that there was a smallest 'unit' charge, or that charge is 'quantized'. He received the Nobel Prize for his work. We're going to explain that experiment here, and show how Millikan was able to determine the size of a charge on a single electron. What Millikan did was to put a charge on a tiny drop of oil, and measure how strong an applied electric field had to be in order to stop the oil drop from falling. Since he was able to work out the mass of the oil drop, and he could calculate the force of gravity on one drop, he could then determine the electric charge that the drop must have. By varying the charge on different drops, he noticed that the charge was always a multiple of This meant that it was electrons carrying this unit charge.
Experiment de Millikan
Physics requires experiments, accurate measurement and, of course, conclusions to be drawn. There are numerous examples of decisive experiments in the history of physics. He was eventually to become a lecturer there , a post he held until Millikan was a key figure in the development of physics in the United States in the first half of the 20th century.