Electric Potential at Point D in a Rectangle with Three Charges

[Swan]

Homework Statement

The diagram shows three charges, A (+5.0 μC),B (-7.0 μC), and C (+2.0 μC), placed at three corners of a rectangle. Point D is the fourth corner. What is the electric potential at point D?

Homework Equations

V_EL = $\frac{(k)(q₁)}{d}$

The Attempt at a Solution

I don't know how to find it at Point D.

 

[tiny-tim]

Hi Swan!

Just add the individual potentials.

 

[Swan]

Hi Swan!

Just add the individual potentials.

Ok, Thank you tiny-tim. :)