👉 In physics and engineering, a discharge is an energy transfer between two or more objects. It can be described as a loss of energy due to friction or resistance in a closed circuit system, which can result from the movement of charges on the circuit. Discharges are typically measured in joules (J) or kilojoules (kJ). The amount of energy lost or exchanged between two objects depends on the type and size of the circuit, as well as the specific charge density or resistance of