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Calculating the electric potential at the midpoint

  • Thread starter rrosa522
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  • #1
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Homework Statement


How do you calculate the electric potential at the midpoint between two point charges?

Homework Equations




The Attempt at a Solution


I was asked to find the electric potential at the midpoint of every side of an equilateral triangle. I have no clue how I could do this find the midpoint.
 

Answers and Replies

  • #2
gneill
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What equation is relevant for finding the electric potential at some distance from a point charge?
 
  • #3
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What equation is relevant for finding the electric potential at some distance from a point charge?
What equation is relevant for finding the electric potential at some distance from a point charge?
V=keq/r
 
  • #4
gneill
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20,792
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V=keq/r
Okay, I presume you mean

##V = k\frac{q}{r}## where k is Coulomb's constant.

So what are the distances to each charge from one of the midpoints of a side of the triangle? Make a diagram and use a bit of geometry.
 

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