Equipotential Lines for Two Equal and Opposite Point Charges
Electric field (blue) and equipotential lines (green) for two equal and opposite charges
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, College Physics. February 9, 2013."
http://cnx.org/content/m42331/latest/?collection=col11406/latest
OpenStax CNX
CC BY 3.0.