Relationship between capacitor capacity and aluminum foil
If it is the gold film capacitor, the medium is the film, the voltage is high, the medium is more, so the capacity is not only related to the area of the aluminum foil, but also to the thickness of the dielectric. Generally speaking, if the voltage is determined, the larger the area of the aluminum foil, the greater the capacity!
The dielectric constant is determined by the medium between the two platesIf the aluminum electrolytic capacitor, because the medium is AL2O3, the medium is very thin, if the voltage under certain conditions, the greater the aluminum foil area, the capacity is about large, so the capacity is basically determined by the area of aluminum foil!
The capacitance C of the parallel plate capacitor is directly proportional to the dielectric constant epsilon, inversely proportional to the area, and inversely proportional to the distance d between the platesC= epsilon S/4 PI KDK is static electric constant in the formula
