Читать книгу The ESD Control Program Handbook - Jeremy M. Smallwood - Страница 56

For a conducting object in an electric field, charge flows until all points on the surface are at the same voltage. This must be so, as any voltage difference would cause a current to flow in the conductor. If the object is hollow, then the field inside the object is zero, because an equipotential conductor surrounds it (Figure 2.7). An object placed within the hollow conductor would therefore be shielded from the effects of an external field. This hollow conductor is called a Faraday cage.