Energy transfer efficiency

Energy transfer efficiency refers to how effectively energy moves from one system or object to another without being lost, usually as waste heat or other forms of dissipation. It is expressed as a percentage, indicating the ratio of useful energy received to the energy input. For example, if a machine consumes 100 units of energy and performs 80 units of work, its efficiency is 80%. Higher efficiency means less energy wasted, resulting in more effective use of resources. This concept applies to engines, electrical devices, and various processes, helping us understand how well energy is conserved during transfer.