The Millikan oil-drop experiment, which was the first experiment to measure the charge of the electron, compared the electrical force on a small charged oil drop with the force exerted on this drop by gravity.

a. True
b. False

The oil drop experiment was carried out by Robert Millikan and Harvey Fletcher in 1909 to determine the charge of an electron. By balancing downward gravitation force with upward drag and electric force, they suspended small charged droplets of oil between two metal electrodes.

The charge over an oil droplet was often an integral value of e, was determined by changing the intensity of the electric field.

So, the given statement is true

The Millikan oil-drop experiment, which was the first experiment to measure the charge of the electron, compared the electrical force on a small charged oil drop with the force exerted on this drop by gravity. a. True b. False

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The Millikan oil-drop experiment, which was the first experiment to measure the charge of the electron, compared the electrical force on a small charged oil drop with the force exerted on this drop by gravity.

a. True
b. False