Kuormapiiri
Kuormapiiri is the portion of an electrical circuit that consumes power from a source and performs useful work, such as lighting a lamp or driving a motor. In Finnish electrical engineering texts, kuormapiiri is contrasted with the source or drive circuitry, which supplies energy to the load.
Practically, a kuormapiiri is characterized by its impedance Z_L, which may be resistive, reactive, or nonlinear.
Analysis and design treat the load as the terminal network connected to the source. Thevenin and Norton
Typical kuormapiirit include a light bulb, heater, electric motor, loudspeaker, or the input stage of a following
See also: load, impedance, Thevenin's theorem, maximum power transfer theorem.