The Circuit Elements of Capacitance and Inductance

Abstract

The networks discussed previously have consisted of energy sources and energy dissipators but not energy storers. The circuit elements which store energy endow a network with non-instantaneous properties by virtue of the time necessary for them to increase or decrease their stored energy. A network consisting only of sources and resistances does not possess transient properties because the volt-ampere equations of the branches do not involve time. The volt-ampere equations of the two circuit elements which store energy contain time integrals and derivatives of voltage and current and therefore the response of a network containing these elements to a stimulus cannot be instantaneous.