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## Homework Statement

Two point charges -2Q and +3Q are on the x-axis at the origin and at

x = L. Find all the points on the x-axis (not at infinity) where the electric

potential is zero. Express your answers in terms of L and Q.

## Homework Equations

V= k*Q/r

## The Attempt at a Solution

I understand that when dealing with two positive charges there is a point between them (if they are equal magnitude, this would be right at d/2) where the field magnitude is zero (because the fields repel each other) but with two opposite charges am I wrong to assume that the only place where the potential would be zero would be directly at the negative charge as field lines always point in the direction of decreasing potential? How would I express this?

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