3.3 Conductors A conductor is a material inside which charges can flow freely. (no resistance) For electrostatics,- equilibrium,- fixed in space, zero electric field -all points are at the same potential.(otherwise, charges will move. If a conductor is placed in an electric field charges flow within it, so as to produce a second electric field that cancels the first one in the conductor Applying Gauss'law V. E=p/Eo inside conductors, SInce E=0,→p=0 Conclusion the charge density is 0 inside a conductor Corollary any net charge on a conductor must reside on its surface