What are the two types of push button switch?

Normally Open (NO) Push Button Switch: This type of switch remains open in its normal state, and only closes the circuit when the button is pressed. The circuit is broken again when the button is released. This type of switch is commonly used in applications where the circuit needs to be closed only for a brief period, such as in a doorbell or a machine control button.

Normally Closed (NC) Push Button Switch: This type of switch is closed in its normal state, and only opens the circuit when the button is pressed. The circuit is closed again when the button is released. This type of switch is commonly used in applications where the circuit needs to be closed continuously, such as in a security system or a circuit that needs to be kept closed to maintain power to a device.

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