A load is any device that absorbs energy in an electrical system. Home appliances and electrical appliances in general are divided into two great groups of loads: resistive and inductive. Resistive loads are simple those in which electricity produces heat, but not movement. Typical loads of this type are incandescent lamps or electrical radiators. Inductive loads are generally those in which electricity circulates through coils. Normally they are motors, such as electric fans or refrigerators; or transformers present in most electronic devices, such as television sets, computers or fluorescent lamps.