Pictured are three point charges spaced equidistantly. All three charges have the same charge magnitude Q, but two charges are positive and one is negative, as shown in the figure. There are four points in the figure labeled A, B, C, and D. Let Ux denote the potential energy of the system when a negative test charge -q is placed at some labeled point X ∈ {A, B, C, D}. Order the potential energies Ux from lowest to highest.
Highest potential energy
Lowest potential energy
Answer Bank
UC UA UB UD