Question

Electric potential of surface and volume charges?

Answer 1

The definition of electric potential isV(r)=−∫CE∙dl

Is this formula only for line charges?

What is the corresponding formulas for electric potentials of surfaces (cylinders) and volume charges (spheres

Answer 2

The volume charge density ρ is the amount of charge per unit volume(cube), surface charge density σ is amount per unit surface area (circle) with outward unit normal n̂, d is the dipole moment between two pointcharges, the volume density of these is the polarization density P. Position vector r is a point to ..