Problem: Millikan determined the charge on the electron by studying the static charges on oil drops falling in an electric field. A student carried out this experiment using several oil drops for her measurements and calculated the charges on the drops. She obtained the following data:Droplet Calculated Charge (C) A1.60 x 10–19B3.15 x 10–19C4.81 x 10–19D6.31 x 10–19What conclusion can the student draw from these data regarding the charge of the electron?

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charge of the electron → common factor of calculated charge


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Problem Details
Millikan determined the charge on the electron by studying the static charges on oil drops falling in an electric field. A student carried out this experiment using several oil drops for her measurements and calculated the charges on the drops. She obtained the following data:


Droplet Calculated Charge (C
A1.60 x 10–19
B3.15 x 10–19
C4.81 x 10–19
D6.31 x 10–19


What conclusion can the student draw from these data regarding the charge of the electron?

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