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Electrostatics: Coulomb Force

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Three identical charges +q and a fourth charge -q form a square of side a.

a) Find the magnitude of the electric force on a charge Q placed at the center of the square.
b) Describe the direction of this force.

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Solution Summary

Three charges are at the corners of a square. The force on the charge at the center is calculated.

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Coulomb's Law
________________________________________
Three identical charges +q and a fourth charge -q form a square of side a.

a) Find the magnitude of the electric force on a charge Q placed at the center of the square.
b) ...

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