Particles A, B, C, and D in Figure P25.31 each carry a charge of magnitude \(3.0 \mathrm{nC}\). Calculate the electric potential energy for the charge distribution in this \(3.0-\mathrm{m}\) square \((a)\) if all the charges are positive; \((b)\) if \(\mathrm{B}, \mathrm{C}\), and \(\mathrm{D}\) are positive and \(\mathrm{A}\) is negative; \((c)\) if \(\mathrm{B}\) and \(\mathrm{C}\) are positive and A and D are negative; and \((d)\) if \(\mathrm{A}\) and \(\mathrm{C}\) are positive and B and D are negative.

Data from Figure P25.31

Transcribed Image Text:

A T B DO C 3.0 m-