Q. What type of rectifier allows current to flow in both directions?
A.
Half-wave rectifier
B.
Full-wave rectifier
C.
Bridge rectifier
D.
None of the above
Show solution
Solution
A rectifier that allows current to flow in both directions does not exist; rectifiers are designed to convert AC to DC.
Correct Answer:
D
— None of the above
Learn More →
Q. What type of rectifier uses a single diode?
A.
Full-wave rectifier
B.
Half-wave rectifier
C.
Bridge rectifier
D.
Voltage doubler
Show solution
Solution
A half-wave rectifier uses a single diode to convert AC to DC by allowing only one half of the AC waveform to pass.
Correct Answer:
B
— Half-wave rectifier
Learn More →
Q. What type of transistor is a BJT?
A.
Unipolar
B.
Bipolar
C.
Field-effect
D.
Insulated-gate
Show solution
Solution
A BJT (Bipolar Junction Transistor) is a bipolar device that uses both electron and hole charge carriers.
Correct Answer:
B
— Bipolar
Learn More →
Q. Which application commonly uses an operational amplifier?
A.
Voltage follower
B.
Diode rectifier
C.
Transistor switch
D.
Inductor filter
Show solution
Solution
A voltage follower is a common application of operational amplifiers, providing high input impedance and low output impedance.
Correct Answer:
A
— Voltage follower
Learn More →
Q. Which application is NOT typically associated with operational amplifiers?
A.
Signal conditioning
B.
Voltage regulation
C.
Audio amplification
D.
Digital logic operations
Show solution
Solution
Digital logic operations are not typically associated with operational amplifiers, which are used for analog signal processing.
Correct Answer:
D
— Digital logic operations
Learn More →
Q. Which configuration of an OP-AMP is commonly used for modulation?
A.
Inverting amplifier
B.
Non-inverting amplifier
C.
Differential amplifier
D.
Voltage follower
Show solution
Solution
The non-inverting amplifier configuration is often used for modulation due to its high input impedance.
Correct Answer:
B
— Non-inverting amplifier
Learn More →
Q. Which configuration of an operational amplifier provides a phase shift of 180 degrees?
A.
Inverting amplifier
B.
Non-inverting amplifier
C.
Voltage follower
D.
Differential amplifier
Show solution
Solution
The inverting amplifier configuration provides a phase shift of 180 degrees.
Correct Answer:
A
— Inverting amplifier
Learn More →
Q. Which of the following configurations can be used to create a differential amplifier?
A.
Inverting and non-inverting amplifiers
B.
Only inverting amplifiers
C.
Only non-inverting amplifiers
D.
Voltage followers
Show solution
Solution
A differential amplifier can be created using both inverting and non-inverting amplifier configurations.
Correct Answer:
A
— Inverting and non-inverting amplifiers
Learn More →
Q. Which of the following configurations can be used to create a summing amplifier?
A.
Inverting amplifier
B.
Non-inverting amplifier
C.
Voltage follower
D.
Differential amplifier
Show solution
Solution
A summing amplifier can be created using an inverting amplifier configuration.
Correct Answer:
A
— Inverting amplifier
Learn More →
Q. Which of the following is a characteristic of a FET?
A.
Current-controlled device
B.
Voltage-controlled device
C.
Requires biasing for operation
D.
Has a high input current
Show solution
Solution
FETs (Field Effect Transistors) are voltage-controlled devices, which means they control current flow based on the voltage applied to the gate.
Correct Answer:
B
— Voltage-controlled device
Learn More →
Q. Which of the following is a characteristic of a JFET?
A.
It is voltage-controlled
B.
It is current-controlled
C.
It has a gate current
D.
It operates in the saturation region only
Show solution
Solution
A JFET (Junction Field Effect Transistor) is a voltage-controlled device, meaning the output current is controlled by the voltage applied to the gate.
Correct Answer:
A
— It is voltage-controlled
Learn More →
Q. Which of the following is a characteristic of a MOSFET?
A.
Requires a continuous current to operate
B.
Has a gate that is insulated from the channel
C.
Is always on when powered
D.
Has low input impedance
Show solution
Solution
A MOSFET has a gate that is insulated from the channel, allowing for high input impedance.
Correct Answer:
B
— Has a gate that is insulated from the channel
Learn More →
Q. Which of the following is a characteristic of MOSFETs?
A.
They are current-controlled devices
B.
They have high input impedance
C.
They require a biasing current
D.
They are less sensitive to temperature changes
Show solution
Solution
MOSFETs are known for their high input impedance, making them suitable for various applications.
Correct Answer:
B
— They have high input impedance
Learn More →
Q. Which terminal of an operational amplifier is typically used as the inverting input?
A.
Non-inverting terminal
B.
Inverting terminal
C.
Output terminal
D.
Power supply terminal
Show solution
Solution
The inverting terminal is the one where the input signal is applied for inverting configurations.
Correct Answer:
B
— Inverting terminal
Learn More →
Q. Which type of diode is specifically designed for voltage regulation?
A.
Zener diode
B.
Schottky diode
C.
Light Emitting Diode (LED)
D.
Rectifier diode
Show solution
Solution
Zener diodes are used for voltage regulation due to their ability to maintain a constant output voltage.
Correct Answer:
A
— Zener diode
Learn More →
Q. Which type of diode is used for voltage regulation?
A.
Zener diode
B.
Schottky diode
C.
Light-emitting diode
D.
Photodiode
Show solution
Solution
A Zener diode is specifically designed to operate in reverse bias and maintain a constant voltage.
Correct Answer:
A
— Zener diode
Learn More →
Q. Which type of FET is controlled by voltage applied to the gate?
A.
Junction FET (JFET)
B.
Metal-Oxide-Semiconductor FET (MOSFET)
C.
Insulated Gate Bipolar Transistor (IGBT)
D.
Bipolar Junction Transistor (BJT)
Show solution
Solution
A Metal-Oxide-Semiconductor FET (MOSFET) is controlled by the voltage applied to its gate terminal.
Correct Answer:
B
— Metal-Oxide-Semiconductor FET (MOSFET)
Learn More →
Q. Which type of FET is known for its high input impedance?
A.
JFET
B.
MOSFET
C.
BJT
D.
IGBT
Show solution
Solution
MOSFETs are known for their high input impedance, making them suitable for various applications.
Correct Answer:
B
— MOSFET
Learn More →
Q. Which type of modulation is most commonly used in analog communication systems?
A.
Amplitude Modulation (AM)
B.
Frequency Modulation (FM)
C.
Phase Modulation (PM)
D.
Pulse Width Modulation (PWM)
Show solution
Solution
Amplitude Modulation (AM) is widely used in analog communication systems for broadcasting.
Correct Answer:
A
— Amplitude Modulation (AM)
Learn More →
Q. Which type of modulation is most commonly used in digital communication systems?
A.
Amplitude Modulation (AM)
B.
Frequency Modulation (FM)
C.
Phase Shift Keying (PSK)
D.
Pulse Width Modulation (PWM)
Show solution
Solution
Phase Shift Keying (PSK) is widely used in digital communication systems for its robustness against noise.
Correct Answer:
C
— Phase Shift Keying (PSK)
Learn More →
Q. Which type of transistor is a BJT?
A.
Unipolar
B.
Bipolar
C.
Field-effect
D.
Insulated-gate
Show solution
Solution
A BJT (Bipolar Junction Transistor) is a bipolar device that uses both electron and hole charge carriers.
Correct Answer:
B
— Bipolar
Learn More →
Q. Which type of transistor is commonly used for switching applications?
A.
BJT
B.
FET
C.
MOSFET
D.
All of the above
Show solution
Solution
All types of transistors, including BJTs, FETs, and MOSFETs, can be used for switching applications, but MOSFETs are particularly popular due to their efficiency.
Correct Answer:
D
— All of the above
Learn More →
Showing 121 to 142 of 142 (5 Pages)
