Learning Goal: To analyze the experiment used to determine the properties of an

Question

Learning Goal: To analyze the experiment used to determine the properties of an electron. In 1909, Robert Millikan performed an experiment involving tiny, charged drops of oil. The drops were charged because they had picked up extra electrons. Millikan was able to measure the charge on each drop in coulombs. Here is an example of what his data may have looked like. Why did different drops have different charges? Because the drops were different sizes. Because some drops contained more atoms than others. Because some drops had picked up more electrons than others.

Explanation / Answer

because some drops picked more electrons than others based on this he established e/m ratio cos the mass depends on the mass of electron and charges grew correspondly so get that data and established the e/m ratio

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