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A proximity switch works by emitting an electromagnetic field and monitoring it, activating whenever a sensor detects a change in the field. The activation of the sensor then sends an output or an electrical signal to sw... More »

www.reference.com Science Physics Electricity

A toggle switch works by using a lever to open or close an electrical circuit. Toggle switches are available in two types: maintained contact and momentary contact. Maintained switches stay in the position in which they ... More »

www.reference.com Home & Garden Home Maintenance Electrical

A switch works by interrupting current flow around an electrical circuit. A basic switch is a binary device: it is either open (off) or closed (on). The simplest type of switch is one that comprises two metal strips that... More »

www.reference.com Science Physics Electricity
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A switch works by interrupting current flow around an electrical circuit. A basic switch is a binary device: it is either open (off) or closed (on). The simplest type of switch is one that comprises two metal strips that... More »

www.reference.com Science Physics Electricity

When the coil of a solenoid is charged with an electromagnetic field, the armature iron is pulled toward the stationary iron core. A solenoid is made up of the armature, which is a movable iron core, a coil, a spring, al... More »

www.reference.com Science Physics Electricity

An induction hot plate works by using an electromagnetic field to create heat in a cooking vessel. Heat from the vessel is then transferred to the contents to be cooked. More »

www.reference.com Home & Garden Appliances Ovens & Ranges

A two-way light switch produces light when two of three wires transport a current to either end of the installation. The third wire creates repetitive switching at either end. The red wire is the traveler that carries th... More »

www.reference.com Science Physics Electricity