This sequence of demonstrations addresses these questions. The Faraday cage or Faraday shield is an important application of such a shielding (see Figure). Can electric fields not penetrate metals? What's going on? Several electrostatic effects can in fact damage or cause failure in electronic components and assemblies. The Faraday cage or Faraday shield is an important application of such a shielding []. Is it a two-way street and work both ways? How does shielding work? How does shielding work