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The electric potential at a point that is halfway between two identical charged particles is 300 V. What is the potential at a point that is 25% of the way from one particle to the other?

**Answer:** V2 = 400V

## Explanation

We can start a solution with expression for the potential of a point charge:

In the middle between two charges potential is:

Potential at a point that is 25% of the wat from one particle to the other is:

If we substitute in the previous equation we get:

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