Understanding Transistors

What is a transistor?

• A transistor is a semiconductor device used to amplify or switch electronic signals.

• A transistor is a device that stores electrical energy.

• A transistor is a type of resistor used to limit current.

• A transistor is a type of battery used for power storage.

Who invented the transistor?

• John Bardeen, Walter Brattain, and William Shockley

• Nikola Tesla

• Alexander Graham Bell

• Thomas Edison

What are the main types of transistors?

• Integrated Circuit Transistors (ICTs)

• Bipolar Junction Transistors (BJTs) and Field Effect Transistors (FETs)

• Quantum Dot Transistors (QDTs)

• Optical Transistors (OTs)

How does a transistor work?

• A transistor acts as a switch or amplifier by controlling current flow using a small input current.

• A transistor is a type of resistor that limits voltage.

• A transistor only works in digital circuits.

• A transistor generates electricity from heat.

What is the role of a transistor in a circuit?

• The role of a transistor in a circuit is to act as a switch or amplifier.

• To increase the resistance in a circuit.

• To store electrical energy in a circuit.

• To convert AC to DC voltage.

What is the difference between a BJT and a FET?

• BJTs are voltage-controlled devices using both charge carriers.

• FETs are current-controlled devices using both charge carriers.

• BJTs use one type of charge carrier while FETs use two.

• BJTs are current-controlled devices using both charge carriers; FETs are voltage-controlled devices using one type of charge carrier.

What does the term 'amplification' mean in relation to transistors?

• Amplification means converting a signal into a digital format.

• Amplification is the process of filtering out noise from a signal.

• Amplification refers to reducing the size of a signal.

• Amplification in transistors means increasing the strength of a signal.

What are some common applications of transistors?

• Transistors are only found in analog clocks.

• Transistors are used exclusively for heating elements.

• Transistors are primarily used in mechanical devices.

• Transistors are used in amplifiers, switches, oscillators, signal modulators, digital logic gates, voltage regulators, and microprocessors.

What is the significance of the transistor in modern electronics?

• Transistors have no impact on the size of electronic devices.

• The transistor is crucial for enabling the functionality and miniaturization of modern electronic devices.

• Transistors are primarily used for power generation.

• Transistors are only used in analog circuits.

How can transistors be used as switches?

• Transistors act as electronic switches by controlling current flow based on input voltage.

• Transistors require mechanical parts to function as switches.

• Transistors are used exclusively in analog circuits.

• Transistors can only amplify signals, not switch them.