Solution: Two point charges q1 = +10.00 nC and q 2 = +2.00 nC are 0.100 m apart as shown in the figure to the right. Point A is midway between q1 and q2. Point B is 0.080 m from q 1 and 0.060 from q 2. Determine the energy required to move a charge q 3 = +10.00 nC from point B to point A.

Two point charges q_{1} = +10.00 nC and q _{2} = +2.00 nC are 0.100 m apart as shown in the figure to the right. Point A is midway between q_{1} and q_{2}. Point B is 0.080 m from q _{1} and 0.060 from q _{2}. Determine the energy required to move a charge q _{3} = +10.00 nC from point B to point A.