AFCT Electronics: Components and Functions 2

Question 1

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

Accepted Answer

To amplify or switch electronic signals

Answer

To store electrical energy

Answer

To convert AC to DC

Answer

To measure voltage

Question 2

What component is used to store energy in an electric field between two conductive plates?

Accepted Answer

Capacitor

Answer

Resistor

Answer

Inductor

Answer

Transformer

Question 3

What does a diode do in a circuit?

Accepted Answer

Allows current to flow in one direction only

Answer

Allows current to flow in both directions equally

Answer

Amplifies the signal passing through it

Answer

Stores energy magnetically

Question 4

What is the function of an inductor in an electronic circuit?

Accepted Answer

To store energy in a magnetic field when current flows through it

Answer

To store energy in an electric field

Answer

To convert digital signals to analog

Answer

To increase the resistance of the circuit

Question 5

What type of resistor changes its resistance based on temperature?

Accepted Answer

Thermistor

Answer

Potentiometer

Answer

Varistor

Answer

Photoresistor

Question 6

What is the purpose of a voltage regulator in a power supply circuit?

Accepted Answer

To maintain a constant output voltage regardless of input voltage or load changes

Answer

To convert AC to DC

Answer

To increase voltage above the input level

Answer

To measure the voltage of the power source