34. Applications of Switch

Question.1

An Arduino-based development board features a small, 6mm square component with a round plunger in the center and four silver legs soldered into the board.

What is the electrical behavior of this switch when the plunger is pressed and then released?

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It is a "momentary" switch that stays ON only while being held down.
It is a "latching" switch that stays ON permanently until pressed again.
It is a "normally closed" switch that breaks the circuit when pressed.
It is a "toggle" switch that alternates between two different circuits.

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