In the diagram, q₁ = -2.00 x 10-5 C, 92 +3.80 x 10-6 C, and q3 = +5.30 x 10-5 C. What is the electric potential energy U, for charge q2? Include the correct sign (+ or -).

Question

Q1-Q2-Q3 (left to right) Q1 to Q2 has distance of 1.15 m. Q2 to Q3 has a distance of 2.88 m.

Answer 1

PE = K q1q2/ r12. +Kq2q3/ r13 + K q1q3/r13

K = 9*10^9

r12= 1.15 r23 =2.88. r13 = 1.15 + 2.88

plug in all q values with signs and get answer in Joule