五福彩票最新版capacitors are made up of two electrodes and the dielectric materials between them. the dielectric material is an dielectric, which, when placed in an electric field between two parallel plates with equal heterosexual charge, produces a polarized charge on the surface of the medium due to polarization, so that the charge bound on the plate increases accordingly, and the potential difference between the plates remains unchanged.
this is why capacitors have capacitance characteristics. the amount of electricity stored in the capacitor q is equal to the product of the potential difference u between the capacitance c and the electrode. the capacitance is proportional to the plate area and the dielectric constant epsilon of the dielectric material, which is in inverse proportion to the thickness of the dielectric material (that is, the distance between the plates).