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The Millikan oil drop experiment was a direct and convincing experiment for the

ID: 733960 • Letter: T

Question

The Millikan oil drop experiment was a direct and convincing experiment for the measurement of the charge on a single electron. Millikan performed an experiment on a charged oil droplet. By balancing the forces acting on the oil droplet, the charge on a single electron can be calculated. Millikan found that the charge of an oil droplet is always a whole-number multiple of -1.60 times 10-19 C. Thus, the charge on a single electron is -1.60 times 10-19 C. The forces acting on an oil droplet Check all that apply. Gravitational force Normal force Air resistive force Buoyant force Electric force Spring force

Explanation / Answer

Air resistive

electric force

buoyant force

gravitational force