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synergix

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## Homework Statement

What is the electric potential at the point midway between charges of 7.0 microC and 3.0microC which are 3.0 m apart?

## Homework Equations

Va=Va1+-Va2

V= Kq/r

## The Attempt at a Solution

I know how to do the calculations I am just not sure about how to add the potentials I am pretty sure that since they are both positive and the charge is halfway between them then the electrical potential will be the difference between the two is that correct?