Fractal structure of equipotential curves on a continuum percolation model

► This article gives a universal property on the two-dimensional continuum percolation models. ► This article shows the fractal structure of their electric potential. ► This article shows the fractal dimension of the equi-potential curves of the potential distribution of the continuum percolation models. ► It is conjectured that the fractal dimension at the percolation threshold is 4/3.