Thu April 21, 2011 By: Deepshikha Nair

why did millikan use oil drops in his experiment? and how did he calculate the charge on an electron?

Expert Reply
Thu April 21, 2011
The oil droplets attach themselves to one or more electrons produced by X-rays and become negatively charged.The charge on electron can be determined by measuring the velocity of an oil droplet under the influence of gravity and under the influence of the applied field.
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