Question

A chemist in a galaxy far, far away performed the Millikan oil drop experiment and got the following results for the charges on various drops.
1.64 10-12 zirkombs 4.92 10-12 zirkombs
2.87 10-12 zirkombs 4.10 10-13 zirkombs

Use these data to calculate the charge of the electron in zirkombs.

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