$18.1 Conductors in electric field 2. The conditions of electrostatic equilibrium of a conductor O Charge separation continues until such time that the total electric field within the conductor is zero Conductor equipotential body E=-VV ② The free charge o on a日 conductor does not lie within it but must reside on its surface 18. 1 Conductors in electric field 3. The magnitude of the electric field at the surtace oi a conductor In electrostatics the electric field vector at the surface of a conductor must be perpendicular to the surface. The surface of the conductor is -Av=E dr an equipotential surface. @The magnitude of the electric field at any location on the surface of any conductor is equal to to the magnitude of the local surface charge density o divided by E=2 2. The conditions of electrostatic equilibrium of a conductor 1Charge separation continues until such time that the total electric field within the conductor is zero. Conductor is a equipotential body. 2The free charge Q on a conductor does not lie within it but must reside on its surface. E = −∇V r §18.1 Conductors in electric field 3. The magnitude of the electric field at the surface of a conductor 1In electrostatics, the electric field vector at the surface of a conductor must be perpendicular to the surface. The surface of the conductor is an equipotential surface. 2The magnitude of the electric field at any location on the surface of any conductor is equal to to the magnitude of the local surface charge density σ divided by ε 0. 0 ε σ E = ∫ − = ⋅ any path V E dr r r ∆ §18.1 Conductors in electric field