BJT Characteristics Quiz

What is the main function of a BJT in a circuit?

• Store energy in the circuit

• Amplify or switch electronic signals

• Generate heat in the circuit

• Block the flow of electronic signals

How does a BJT operate as an amplifier?

• By using a constant input signal to produce a variable output signal

• By converting electrical signals into mechanical signals

• By using a large input signal to control a smaller output signal

• By using a small input signal to control a larger output signal

What are the three modes of operation for a BJT?

• cut-off, active, and saturation

• start, stop, pause

• low, medium, high

• on, off, standby

Explain the difference between the active mode and the saturation mode of a BJT.

• The active mode is when the BJT is in standby, while the saturation mode is when the BJT is in overload.

• The active mode is when the BJT is operating as an amplifier, while the saturation mode is when the BJT is fully turned on and acting as a switch.

• The active mode is when the BJT is turned off, while the saturation mode is when the BJT is partially turned on.

• The active mode is when the BJT is fully turned on, while the saturation mode is when the BJT is operating as an amplifier.

What is the purpose of biasing in a BJT circuit?

• To reduce the gain of the transistor

• To create instability in the circuit

• To increase the power consumption of the circuit

• To establish the desired operating point for the transistor.

How does the biasing affect the operation of a BJT?

• It controls the flow of current through the base-emitter junction

• It increases the resistance of the collector-emitter junction

• It has no effect on the BJT operation

• It changes the color of the base-emitter junction

How does a BJT amplify a signal?

• By controlling the current flow between its collector and emitter terminals using a small current at its base terminal.

• By using a large current at its collector terminal

• By increasing the resistance between its collector and emitter terminals

• By decreasing the voltage between its base and emitter terminals

What are the key characteristics of a BJT?

• No layers of semiconductor material and no amplification

• Three layers of semiconductor material and current amplification

• One layer of semiconductor material and voltage amplification

• Two layers of semiconductor material and current amplification