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                        A switch is a device which is used to make or break an electric circuit automatically or manually. In other words, an electrical switch is a controlling device, which interrupts the flow of electric current or changes the direction of current in a circuit.

Almost all the electrical and electronic systems use at least one switch to control the ON and OFF operations of the device. In simple words, a switch is used to control the circuit operation by activating or deactivating the whole or certain parts or processes of a connected circuit.



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