In electrical engineering, a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit, interrupting the electric current or diverting it from one conductor to another.
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computer keyboard button, or to control power flow in a circuit, such as a light switch.Read More
A switch may be directly manipulated by a human as a control signal to a system.Read More
Controlled by the same knob or actuator, and the contacts may operate.Read More
Switches are made in many different configurations; they may have multiple sets.Read More
Automatically operated switches can be used to control the motions of machines.
A switch that is operated by another electrical circuit is called a relay.
As the result of roughness and oxide films, they exhibit contact resistance.