1. Two point charges 2.0cm apart have an electric potential energy -180 microjoules. The total charge is 30 nanocoulombs. What are the two charges?(adsbygoogle = window.adsbygoogle || []).push({});

Givens: change in postition = 0.02m , Q = 30nC = 3.0e-8C, V = -180 microjoules = 1.8e-4

2. Relevant equations

F = kq_{1}q_{2}/r^2

E = kq/r^2

3. The attempt at a solution

E1 = (9.00e5) (3.0e-8C)/(0.02m^2)....?

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# Homework Help: Calculating the electric potential

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