Electric field around a positively charged and a neutral conducting sphere. The shape of the field lines is computed exactly, using the method of image charges with an infinite series of charges inside the two spheres. Field lines are always orthogonal to the surface of each sphere. In reality, the field is created by a continuous charge distribution at the surface of each sphere, indicated by small plus and minus signs. The electric potential is shown in the background from positive (fuchsia) to zero (yellow) together with uniformely spaced equipotential lines. Note that the field lines follow the gradient of the potential.
Own work
Geek3