Electrical load

[2] The term is used more broadly in electronics for a device connected to a signal source, whether or not it consumes power.

[2] If an electric circuit has an output port, a pair of terminals that produces an electrical signal, the circuit connected to this terminal (or its input impedance) is the load.

When a high-power appliance switches on, it dramatically reduces the load impedance.

Therefore, switching on a heating appliance in a domestic environment may cause incandescent lights to dim noticeably.

Therefore, we would like to ignore the details of the load circuit, as we did for the power supply, and represent it as simply as possible.