#1
Which of the following materials is a semiconductor?
Copper
Silicon
Aluminum
Iron
#2
What is the primary purpose of a voltage regulator in an electronic circuit?
Amplify signals
Stabilize and control the output voltage
Generate alternating current
Convert digital signals to analog
#3
What is the primary role of a capacitor in an electronic circuit?
Control current flow
Store and release electrical energy
Amplify signals
Regulate voltage
#4
What does the acronym IC stand for in the context of electronics?
Integrated Circuit
Intrinsic Capacitance
Inductive Coil
Input Controller
#5
What is the purpose of a resistor in an electronic circuit?
Store energy
Amplify signals
Control current flow
Generate heat
#6
What does the term 'doping' refer to in semiconductor technology?
Adding impurities to alter conductivity
Reducing temperature for better performance
Increasing the size of the semiconductor
Improving mechanical strength
#7
What is the purpose of a diode in an electronic circuit?
To amplify signals
To store energy
To control current flow in one direction
To measure voltage
#8
Which semiconductor device is commonly used for signal amplification?
#9
In a flip-flop circuit, what is the role of clock pulses?
Control the switching operation
Provide power supply
Amplify the input signal
Store data permanently
#10
Which semiconductor material is commonly used in light-emitting diodes (LEDs)?
Silicon
Gallium arsenide
Aluminum
Copper
#11
What is the function of a transistor in electronics?
To store data
To amplify or switch electronic signals
To generate heat
To measure resistance
#12
What is the primary application of an operational amplifier (op-amp) in electronic circuits?
Voltage regulation
Audio amplification
Mathematical operations
Digital signal processing
#13
What does the term 'bandgap' refer to in semiconductor physics?
Difference in energy levels between valence and conduction bands
Width of a semiconductor crystal
Temperature at which a semiconductor conducts
Frequency range for signal transmission
#14
What is the key function of a Schottky diode?
Voltage regulation
Temperature sensing
Fast switching speed
Energy storage
#15
In a transistor, what is the function of the collector?
Amplify signals
Control base current
Provide power supply
Collect charge carriers