Transistor Fundamentals Quiz

Which of the following best describes the main function of a Bipolar Junction Transistor (BJT)?

• To amplify electrical signals

• To store electrical energy

• To convert AC to DC

• To measure temperature

In a Field Effect Transistor (FET), which terminal controls the flow of current between the source and drain?

• Base

• Gate

• Emitter

• Collector

Which of the following is a key difference between a BJT and a FET?

• BJTs are controlled by voltage, FETs by current

• BJTs are controlled by current, FETs by voltage

• Both are controlled by voltage

• Both are controlled by current

• Amperes

• No unit (dimensionless)

• Volts

• Ohms

Which of the following statements about FETs is correct?

• FETs have high input impedance

• FETs have low input impedance

• FETs are always used as switches

• FETs cannot amplify signals

What is the main purpose of biasing a transistor in a circuit?

• To increase the temperature of the transistor

• To set the correct operating point

• To reduce the size of the circuit

• To change AC to DC

Which configuration of BJT provides the highest voltage gain?

• Common base

• Common collector

• Common emitter

• Common source

In a FET, what is the region called where the current between source and drain is almost constant despite increases in drain-source voltage?

• Cut-off region

• Saturation region

• Ohmic region

• Breakdown region

Which of the following is NOT a terminal of a BJT?

• Base

• Source

• Collector

• Emitter