Transistor Fundamentals

What is the main function of a transistor in an electronic circuit?

• To store charge

• To amplify or switch electronic signals

• To convert AC to DC

• To provide insulation between circuits

Which of the following is NOT a type of transistor?

• Bipolar Junction Transistor (BJT)

• Field-Effect Transistor (FET)

• Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET)

• Inductive-Coupled Transistor (ICT)

In a Bipolar Junction Transistor (BJT), what are the three regions called?

• Source, Drain, Gate

• Emitter, Base, Collector

• Anode, Cathode, Gate

• Input, Output, Control

What is the main difference between an NPN and a PNP transistor?

• The direction of current flow

• The material they are made from

• The voltage they can handle

• The frequency of operation

Which material is commonly used to manufacture transistors?

• Copper

• Silicon

• Gold

• Graphene

What is the threshold voltage in a Field-Effect Transistor (FET)?

• The voltage at which the transistor turns off

• The voltage at which the transistor turns on

• The maximum voltage the transistor can handle

• The voltage across the gate and source at equilibrium

How does temperature affect a transistor's operation?

• Increases current flow

• Decreases current flow

• No effect on current flow

• Can either increase or decrease current flow depending on the transistor type

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

• To regulate voltage

• To regulate current

• To dissipate heat

• To provide a path for the majority charge carriers

Which mode of operation is not applicable to a Bipolar Junction Transistor (BJT)?

• Saturation

• Cut-off

• Active

• Transparent

What is the typical signal gain range for a common emitter BJT amplifier?

• 1 to 10

• 20 to 200

• 100 to 1000

• 1000 to 10000