For the situation is question 1, how many elementary charges (unbalanced electrons or protons) are on the oil droplet? [Note: this is the famous Millikan Oil Drop experiment. Millikan was able to take into account the air friction and buoyant force on the droplet (which we ignore here) and solved for the total charge on the drop. By finding that the charges on many drops were multiples of a single common value, he was able to experimentally find the charge on a single elementary charge for the first time. He won the Nobel Prize for that accomplishment.]

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Chapter1: Units, Trigonometry. And Vectors
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For the situation is question 1, how many elementary charges (unbalanced electrons or
protons) are on the oil droplet?
[Note: this is the famous Millikan Oil Drop experiment. Millikan was able to take into account the air friction
and buoyant force on the droplet (which we ignore here) and solved for the total charge on the drop. By
finding that the charges on many drops were multiples of a single common value, he was able to
experimentally find the charge on a single elementary charge for the first time. He won the Nobel Prize for
that accomplishment.]
Transcribed Image Text:For the situation is question 1, how many elementary charges (unbalanced electrons or protons) are on the oil droplet? [Note: this is the famous Millikan Oil Drop experiment. Millikan was able to take into account the air friction and buoyant force on the droplet (which we ignore here) and solved for the total charge on the drop. By finding that the charges on many drops were multiples of a single common value, he was able to experimentally find the charge on a single elementary charge for the first time. He won the Nobel Prize for that accomplishment.]
A small droplet of oil with a mass of 2.00 x 1015 kg is given a small excess charge, which
allows it to be held suspended in a region of uniform electric field, which is directed upward
with a magnitude of 6125 N/C.
Is the excess charge positive or negative?
O Positive
O Negative
Transcribed Image Text:A small droplet of oil with a mass of 2.00 x 1015 kg is given a small excess charge, which allows it to be held suspended in a region of uniform electric field, which is directed upward with a magnitude of 6125 N/C. Is the excess charge positive or negative? O Positive O Negative
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