-1 0 m -1.6 0.6 l -1.6 -0.6 l h -1 0 m -1.2 0.4 l -1.2 -0.4 l h 115 225 m 115 500 l 500 225 m 500 500 l Plate A higher potential Plate B lower potential + + + + - - - - 155 450 m 460 450 l 155 390 m 460 390 l 155 330 m 460 330 l 155 270 m 460 270 l electric field, \(\mathbf{E}\) 14 0 0 14 337 360 e - electron, \(q=-e\) 430 360 m 360 360 l path \(d\mathbf{l}\), B to A Electron moves opposite \(\mathbf{E}\), toward the positive plate. 95 150 m 520 150 l \(V_A - V_B = -\displaystyle\int_B^A \mathbf{E}\mathbin{\cdot}d\mathbf{l} > 0\) Along B to A: \(\mathbf{E}\mathbin{\cdot}d\mathbf{l} < 0\), so potential increases.