1.What is the function of a transistor in an electronic circuit?
A) To amplify electrical signals
B) To convert AC to DC
C) To store electrical energy
D) To increase the resistance
Answer: A) To amplify electrical signals
2.What is the most common type of semiconductor material used in electronic devices?
A) Silicon
B) Carbon
C) Aluminum
D) Iron
Answer: A) Silicon
3.What is the purpose of a rectifier in an electronic circuit?
A) To amplify electrical signals
B) To convert AC to DC
C) To store electrical energy
D) To increase the resistance
Answer: B) To convert AC to DC
4.What is the unit of frequency in an electrical circuit?
A) Ampere
B) Volt
C) Watt
D) Hertz
Answer: D) Hertz
5.What is the purpose of a regulator in an electronic circuit?
A) To amplify electrical signals
B) To convert AC to DC
C) To maintain a constant voltage
D) To increase the resistance
Answer: C) To maintain a constant voltage
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