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Direction of the electron in the potential

Student 5051 9 years ago updated by Physics Tutorial Center Staff 9 years ago 1

If I have an electron in an electric field, what direction will it accelerate in relation to the potential?

I've been told it would go in the direction of where the potential increases, which seems counter intuitive. Why is this true?

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The electric field, by definition, points from high to low. Therefore, the field points toward the lower potential. Since the electron is negatively charged, the force on it is in the opposite direction of the field which is toward the high potential.

Hope this helps!