Hi everyone, I have a question about electric potentials and dielelectrics: 1. when I have a dielectri in the half space x<0 and air in x>0 is the potential steady at x=0? 2. does a potential depend on the relative permittivity ? I know that the electric field gets weaker in a dielectric with 1/epsilon_r but what about the potential? I'm not sure here. Thanks for your help in advance.