1 Answer
A BJT (Bipolar Junction Transistor) is an active component.
This means it can amplify electrical signals. In simple terms, BJTs can control the flow of current through them using a small input current (on the base terminal) to control a much larger output current (between the collector and emitter).
So, BJTs are used to amplify signals in circuits, which makes them active components, as opposed to passive components like resistors or capacitors that only store or dissipate energy but don’t amplify signals.
This means it can amplify electrical signals. In simple terms, BJTs can control the flow of current through them using a small input current (on the base terminal) to control a much larger output current (between the collector and emitter).
So, BJTs are used to amplify signals in circuits, which makes them active components, as opposed to passive components like resistors or capacitors that only store or dissipate energy but don’t amplify signals.