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.
Switch is a device used for making and breaking electric current through the circuit. A switch is a device used for operating electrical appliance.In a switch on position the current passes through the appliance and it starts functioning.In a switch off position the current will not pass through the appliance and it will not work. switch is a device used for operating electrical appliance. In a switch on position the current passes through the appliance and it starts functioning. In a switch off position the current will not pass through the appliance and it will not work.