What is relay? How transistor work? What is dry solder? What is regulator?

Question

Accepted Answer

A relay is an electrically operated switch, a transistor is a semiconductor device used to amplify or switch electronic signals, dry solder is a condition where solder joints do not have enough flux, and a regulator is a device that maintains a constant output voltage.

Relay is an electrically operated switch that uses an electromagnet to mechanically operate a switch.
Transistor is a semiconductor device that can amplify or switch electronic signals and electrical power.
Dry solder is a condition where solder joints do not have enough flux, leading to poor connections.
Regulator is a device that maintains a constant output voltage by adjusting its resistance to changes in input voltage or load.

What is relay? How transistor work? What is dry solder? What is regulator?

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