Question
In an experiment it was found that the total charge on an oil drop was $5.93 \times 10^{-18} \mathrm{C}$. How many negative charges does the drop contain?
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We know that the charge of a single electron is approximately $1.6 \times 10^{-19} \mathrm{C}$. Show more…
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In a hypothetical universe, an oil-drop experiment gave the following measurements of charges on oil drops: $-5.55 \times$ $10^{-19} \mathrm{C},-9.25 \times 10^{-19} \mathrm{C},-1.11 \times 10^{-18} \mathrm{C}$, and $-1.48 \times$ $10^{-18} \mathrm{C}$. Assume that the smallest difference in charge equals the unit of negative charge in this universe. What is the value of this unit of charge? How many units of excess negative charge are there on each oil drop?
In a series of oil-drop experiments, the charges measured on the oil drops were $-4.80 \times 10^{-19} \mathrm{C},-6.40 \times$ $10^{-19} \mathrm{C},-9.60 \times 10^{-19} \mathrm{C}$, and $-1.28 \times 10^{-18} \mathrm{C}$. What is the smallest difference in charge between any two drops? If this is assumed to be the charge on the electron, how many excess electrons are there on each drop?
In a series of oil-drop experiments, the charges measured on the oil drops were $-3.20 \times 10^{-19} \mathrm{C},-6.40 \times 10^{-19} \mathrm{C}$, $-9.60 \times 10^{-19} \mathrm{C}$, and $-1.12 \times 10^{-18} \mathrm{C}$. What is the smallest difference in charge between any two drops? If this is assumed to be the charge on the electron, how many excess electrons are there on each drop?
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