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Homework Help: Physics- Repost Please Help

Posted by Amanda S. on Sunday, February 20, 2011 at 2:00am.

Posted by Amanda E. on Saturday, February 19, 2011 at 10:10pm.

Two positive charges of magnitude q are each a distance d from the origin A of a coordinate system as shown above.
( Figure: h t t p : / / draw.to/DS0Qid)

At which of the following points is the electric field least in magnitude?

At which of the following points is the electric potential greatest in magnitude?

The answers to both questions are A but I don't know how to get these. Please help. Thank You.

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