Switches are fundamental devices in electrical and electronic systems, providing a means to establish or interrupt the flow of current in a circuit. By manipulating the connection between circuit nodes, switches enable control over various circuit elements, from simple light bulbs to complex electronic devices. They come in many forms to cater to a diverse set of applications: toggle switches for manual on-off control, push-button switches for momentary operations, and solid-state switches for high-speed, reliable switching in digital circuits, to name a few. Also notable are relay switches, enabling low-power signals to control higher-power circuits.

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