Bipolar Junction Transistor Quiz

What is the primary function of a Bipolar Junction Transistor (BJT)?

• To store electrical charge

• To convert AC to DC

• To amplify or switch electrical signals

• To generate electricity

Which of the following is NOT a part of a Bipolar Junction Transistor (BJT)?

• Base

• Emitter

• Collector

• Gate

In an NPN transistor, the majority charge carriers are:

• Holes

• Electrons

• Neutrons

• Protons

When a BJT is in the cutoff region, the transistor is:

• Fully on

• Fully off

• Amplifying signals

• In its active region

What does the term "β" (beta) represent in a BJT?

• Voltage gain

• Power gain

• Current gain

• Resistance

In which region of a BJT does it act as an amplifier?

• Cutoff region

• Saturation region

• Active region

• Breakdown region

What happens in the saturation region of a BJT?

• The transistor is off, and no current flows.

• The transistor is fully on, and maximum current flows.

• The transistor is amplifying a signal.

• The base-emitter junction is reverse biased.

Which of the following is true for a PNP transistor?

• Current flows from emitter to collector.

• The majority charge carriers are electrons.

• The emitter is negatively doped.

• The arrow in the symbol points outward.

The collector current (IC) in a BJT is mainly controlled by the:

• Emitter voltage

• Base current

• Collector resistance

• Emitter current

What does the DC load line of a BJT represent?

• The maximum voltage the transistor can handle

• All possible combinations of collector current and collector-emitter voltage for a given load

• The gain of the transistor

• The base-emitter voltage threshold