# Coulomb's Law for Three Point Charges

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Coulomb's law states that the force between two charges and separated by a distance is proportional to the signed magnitudes of the charges and inversely proportional to . In SI units, charge is measured in coulombs (C) and distance in meters (m). The constant equals , giving the force in newtons (N):

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Contributed by: Mina Jafari and Eitan Geva (June 2015)

Additional contributions by: Eitan Geva (University of Michigan)

Open content licensed under CC BY-NC-SA

## Details

References:

[1] Wikipedia. "Coulomb's Law." (Jun 4, 2015) en.wikipedia.org/wiki/Coulomb%27 s_law.

[2] askIITians. "Addition and Subtraction of Vectors." (Jun 4, 2015) www.askiitians.com/iit-jee-physics/general-physics/addition-and-subtraction-of-vectors.aspx.

Submission from the Compute-to-Learn course at the University of Michigan.

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