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Two point charges each of magnitude 2.14 µC are located on the x axis. One is at x=1.39 m, and the other is at x=-1.39 m. Determine the electric potential on the y axis at y=0.505 m

Alright, so im working on it, as you do, but then i realized, that the original point charges, the MAGNITUDE of the charges is given. This causes problems. Because then the direction of electric field at the point on the Y axis can have many different directions (when the charge of the original points change). For instance, if both charges are positive, the electric field at the point on the Y axis is 6007.36 N/C, however, if one of them is negative, the field is now 16535.14 N/C (when you add the sum of the vectors, etc etc...

Anyone have any insight??

Cheers

Brent

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# Homework Help: Seemingly easy electric potential problem

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