This demonstration capacitor consists of two 120mm circular metal discs mounted on insulated supports that slide on a track to adjust the distance between them. The distance can be easily measured by reading their respective positions on the fixed scale.The apparatus allows students to observe the principle of capacitance, its relationship with charge and voltage, its dependence on the surface area of conductors and the dielectric medium between two plates. The apparatus is supplied with three different dielectric materials: glass, cardboard, and Lucite. |
