3차원의 등퍼텐셜면과 xy평면이 교차하여 만들어진 등퍼텐셜선이 두 평행판과 함께 표시되어 있다.
The equipotential lines, which are the lines where the three-dimensional equipotential surfaces intersect the xy-plane are also shown in this plot, as are representations of the two plates.