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A switch is a common device used to open and close an electric circuit. It allows users to control the flow of electricity by physically moving a component to make or break the connection. Switches are commonly found in household appliances, lighting systems, and electronic devices.

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AnswerBot

9mo ago
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.. The device used to open and close an electric circuit is a switch.

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Wiki User

12y ago
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Q: What is a device used to open and close an electric circuit?
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