The capacity for work or vigorous activity; vigor; power. The capacity of a physical system to do work. energy. The capacity or power to do work, such as the capacity to move an object (of a given mass) by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another.
Freebase (0.00 / 0 votes) Rate this definition: Switch. In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another.
A switch is a component which controls the open-ness or closed-ness of an electric circuit. They allow control over current flow in a circuit (without having to actually get in there and manually cut or splice the wires).Switches are critical components in any circuit which requires user interaction or control. circuit diagram with an LED, resistor, and a switch. When the switch is closed, current flows and the LED can illuminate. Otherwise no current flows, and the LED receives no power. There are tons and tons of switches out there: toggle, rotary, DIP, push-button, rocker, membrane, â¦ the list just goes on and on.