Quiz on Transistors

What are the two main types of transistors?

• Metal-oxide-semiconductor transistors (MOS) and diode transistors

• Bipolar junction transistors (BJT) and field-effect transistors (FET)

• Analog transistors and digital transistors

• P-type transistors and N-type transistors

What is the difference between NPN and PNP transistors?

• NPN transistors have a layer of P-type semiconductor sandwiched between two layers of N-type semiconductor, while PNP transistors have a layer of N-type semiconductor sandwiched between two layers of P-type semiconductor.

• NPN transistors have a layer of N-type semiconductor sandwiched between two layers of P-type semiconductor

• PNP transistors have a layer of N-type semiconductor sandwiched between two layers of N-type semiconductor

• NPN transistors have a layer of P-type semiconductor sandwiched between two layers of P-type semiconductor

What is the purpose of a bipolar junction transistor (BJT)?

• The purpose of a bipolar junction transistor (BJT) is to amplify or switch electronic signals.

• The purpose of a bipolar junction transistor (BJT) is to produce light

• The purpose of a bipolar junction transistor (BJT) is to store data

• The purpose of a bipolar junction transistor (BJT) is to generate heat

Explain the operation of a field-effect transistor (FET).

• It uses magnetic fields to control current flow

• It controls the flow of current through a semiconductor channel using an electric field.

• It operates by manipulating the temperature of the semiconductor channel

• It relies on mechanical switches to regulate current

What are the advantages of using MOSFET transistors?

• High input impedance, high output impedance, and low switching speed

• Low input impedance, low output impedance, and low switching speed

• High input impedance, low output impedance, and high switching speed

• Low input impedance, high output impedance, and low switching speed

How does a junction field-effect transistor (JFET) differ from a MOSFET?

• JFET operates with a voltage applied to its gate terminal, while MOSFET operates with a voltage applied across its PN junction.

• JFET operates with a voltage applied across its PN junction, while MOSFET operates with a voltage applied to its gate terminal.

• JFET operates with a voltage applied to its collector terminal, while MOSFET operates with a voltage applied to its emitter terminal.

• JFET and MOSFET both operate with a voltage applied across their PN junctions.

What is the function of a Darlington transistor pair?

• To provide low voltage gain and high input impedance

• To provide high current gain and high input impedance

• To provide low current gain and low input impedance

• To provide high voltage gain and low input impedance

Explain the concept of power transistors and their applications.

• Power transistors are used in applications such as power amplifiers, motor control, and voltage regulation.

• Power transistors are only used for data storage in computers

• Power transistors are only used in low-power electronic devices

• Power transistors have no practical applications in modern technology

What are the characteristics of a phototransistor and its uses?

• The characteristics of a phototransistor include its ability to store large amounts of data.

• A phototransistor is used to convert sound into electrical signals for amplification.

• A phototransistor is a type of transistor that converts light into electrical signals. It is used in light-sensitive electronic devices such as light meters, smoke detectors, and optical switches.

• Phototransistors are only used in mechanical devices and have no electronic applications.

Compare and contrast the different types of transistors in terms of their applications and characteristics.

• There is only one type of transistor, so there are no differences to compare.

• Transistors are not used in any applications, so there are no characteristics to compare.

• This is a subjective question and requires a detailed response beyond the scope of a single correct answer.

• The different types of transistors are all exactly the same, so there are no contrasts to discuss.