In Our Time: Science cover image

The Electron

In Our Time: Science

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What Is the Coulomb Force?

Coulomb force is the force between any two electrically charged objects. It's very important, for example, inside an atom. The electron has a negative charge and the proton has a positive charge. They will repel each other if they have opposite charges. And this is one way that the electron keeps orbiting around the nucleus of the atom. But you also get a Coulomb force between two objects with the same charge.

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