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To start a car engine, the car battery moves $3.75 \times 10^{21}$ electrons through the starter motor. How many coulombs of charge were moved?
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$-600 \textrm{ C}$

Solution Video

OpenStax College Physics Solution, Chapter 18, Problem 3 (Problems & Exercises) (0:20)

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Video Transcript
This is College Physics Answers with Shaun Dychko. We’re going to convert this number of electrons that the car battery moves through the starter into coulombs by multiplying by negative 1.6 times ten to the minus 19 coulombs per electron, and we end up with negative 600 coulombs of charge moved.