Heat limiting current flow is also called ______

• A. I2R Loss
• B. Core Loss
• C. Copper Loss
• D. Dielectric Loss

Answer: (A)

Heat generated by current flowing through resistance comes from dissipating electrical power as heat, described by P = I^2R. This resistive heating directly limits current flow by wasting energy as heat in the conductors. The standard way to name this mechanism is I^2R loss, which directly ties the heat to the current and the resistance. Core loss and dielectric loss are caused by different processes—magnetic core hysteresis/eddy currents and insulating material heating, respectively—so they aren’t the correct description of heat from current in conductors.