A capacitor consists of two conductors separated by a non-conductive region. The non-conductive region is called the dielectric. In simpler terms, the dielectric is just an electrical insulator. Examples of dielectric media are glass, air, paper, vacuum, and even a semiconductor depletion region chemically identical to the conductors. A capacitor is assumed to be self-contained and isolated, with no net electric charge and no influence from any external electric field. The conductors thus hold equal and opposite charges on their facing surfaces, and the dielectric develops an electric field. In SI units, a capacitance of one farad means that one coulomb of charge on each conductor causes a voltage of one volt across the device. COUNT 5
QSN1 What type of area is between the two conductors in a capacitor? ANS1 a non-conductive region QSN2 What is the name given to the area between two conductors in a capacitor? ANS2 the dielectric QSN3 What net electric charge are capacitors assumed to have? ANS3 no net electric charge QSN4 What type of charges do conductors hold on their facing surfaces? ANS4 equal and opposite charges QSN5 What region within a capacitor develops an electric field? ANS5 the dielectric