Q. What is the primary advantage of using series-parallel configurations in circuits?
A.
Increased voltage only
B.
Increased current only
C.
Increased power handling
D.
Decreased complexity
Show solution
Solution
Series-parallel configurations allow for increased power handling by combining the benefits of both series and parallel connections.
Correct Answer:
C
— Increased power handling
Learn More →
Q. What is the primary application of inductors in power supply circuits?
A.
Filtering
B.
Rectification
C.
Amplification
D.
Switching
Show solution
Solution
Inductors are primarily used for filtering in power supply circuits.
Correct Answer:
A
— Filtering
Learn More →
Q. What is the primary characteristic of a common-emitter BJT configuration?
A.
Voltage gain greater than one
B.
Current gain less than one
C.
Inverted output
D.
No phase shift
Show solution
Solution
The common-emitter BJT configuration provides an inverted output signal.
Correct Answer:
C
— Inverted output
Learn More →
Q. What is the primary characteristic of a FET in a parallel configuration?
A.
It can only operate in saturation
B.
It allows for high input impedance
C.
It requires a constant voltage
D.
It behaves like a short circuit
Show solution
Solution
A FET in a parallel configuration allows for high input impedance, making it suitable for various applications.
Correct Answer:
B
— It allows for high input impedance
Learn More →
Q. What is the primary characteristic of a log amplifier using an op-amp?
A.
It produces a linear output for linear input
B.
It outputs a logarithmic function of the input voltage
C.
It filters out high-frequency signals
D.
It provides gain for low-level signals
Show solution
Solution
A log amplifier outputs a logarithmic function of the input voltage, which is useful in applications requiring exponential scaling.
Correct Answer:
B
— It outputs a logarithmic function of the input voltage
Learn More →
Q. What is the primary characteristic of a rectifier in a series circuit?
A.
To convert AC to DC
B.
To amplify signals
C.
To increase frequency
D.
To decrease voltage
Show solution
Solution
A rectifier's primary function is to convert alternating current (AC) to direct current (DC) in series circuits.
Correct Answer:
A
— To convert AC to DC
Learn More →
Q. What is the primary characteristic of a rectifier in a series-parallel circuit?
A.
It converts AC to DC
B.
It amplifies AC signals
C.
It filters noise from signals
D.
It stores energy
Show solution
Solution
Rectifiers are designed to convert alternating current (AC) to direct current (DC) in circuits.
Correct Answer:
A
— It converts AC to DC
Learn More →
Q. What is the primary characteristic of a rectifier?
A.
It converts AC to DC
B.
It amplifies signals
C.
It stores energy
D.
It regulates voltage
Show solution
Solution
Rectifiers are designed to convert alternating current (AC) into direct current (DC).
Correct Answer:
A
— It converts AC to DC
Learn More →
Q. What is the primary characteristic of a Schottky diode?
A.
High reverse breakdown voltage
B.
Low forward voltage drop
C.
High current gain
D.
High thermal stability
Show solution
Solution
A Schottky diode is known for its low forward voltage drop, which allows for faster switching speeds and lower power loss.
Correct Answer:
B
— Low forward voltage drop
Learn More →
Q. What is the primary characteristic of a series rectifier circuit?
A.
It allows AC to pass through
B.
It converts AC to DC
C.
It increases the frequency of the input signal
D.
It decreases the voltage
Show solution
Solution
A series rectifier circuit converts alternating current (AC) to direct current (DC) by allowing current to flow in one direction.
Correct Answer:
B
— It converts AC to DC
Learn More →
Q. What is the primary characteristic of dynamic RAM (DRAM)?
A.
It requires constant refreshing
B.
It is faster than SRAM
C.
It uses a single transistor per bit
D.
It is non-volatile
Show solution
Solution
Dynamic RAM (DRAM) requires constant refreshing to maintain the stored data, as it uses capacitors that leak charge over time.
Correct Answer:
A
— It requires constant refreshing
Learn More →
Q. What is the primary difference between Alternating Current (AC) and Direct Current (DC)?
A.
AC flows in one direction only
B.
DC flows in one direction only
C.
AC is used in batteries
D.
DC is used in power plants
Show solution
Solution
Direct Current (DC) flows in one direction only, while Alternating Current (AC) changes direction periodically.
Correct Answer:
B
— DC flows in one direction only
Learn More →
Q. What is the primary difference between electrolytic and ceramic capacitors?
A.
Size and voltage rating
B.
Polarity and capacitance value
C.
Temperature coefficient and frequency response
D.
Cost and availability
Show solution
Solution
Electrolytic capacitors are polarized and typically have higher capacitance values, while ceramic capacitors are non-polarized.
Correct Answer:
B
— Polarity and capacitance value
Learn More →
Q. What is the primary function of a Bipolar Junction Transistor (BJT)?
A.
Voltage regulation
B.
Current amplification
C.
Signal modulation
D.
Power conversion
Show solution
Solution
A BJT is primarily used for current amplification in electronic circuits.
Correct Answer:
B
— Current amplification
Learn More →
Q. What is the primary function of a bypass capacitor in a BJT amplifier?
A.
To increase the input impedance
B.
To reduce noise
C.
To stabilize the bias point
D.
To improve frequency response
Show solution
Solution
A bypass capacitor improves the frequency response of a BJT amplifier by allowing AC signals to bypass the emitter resistor.
Correct Answer:
D
— To improve frequency response
Learn More →
Q. What is the primary function of a capacitor in a rectifier circuit?
A.
To increase current
B.
To filter out noise
C.
To store charge
D.
To convert AC to DC
Show solution
Solution
In a rectifier circuit, a capacitor is used to store charge and smooth out the output voltage.
Correct Answer:
C
— To store charge
Learn More →
Q. What is the primary function of a capacitor in an electronic circuit?
A.
To store electrical energy
B.
To amplify signals
C.
To rectify AC to DC
D.
To provide feedback
Show solution
Solution
Capacitors store electrical energy in an electric field, which can be released when needed.
Correct Answer:
A
— To store electrical energy
Learn More →
Q. What is the primary function of a diode in a rectifier circuit?
A.
To amplify the signal
B.
To allow current to flow in one direction
C.
To store electrical energy
D.
To convert AC to DC
Show solution
Solution
A diode allows current to flow in one direction, which is essential for converting alternating current (AC) to direct current (DC) in rectifier circuits.
Correct Answer:
B
— To allow current to flow in one direction
Learn More →
Q. What is the primary function of a diode in a semiconductor memory circuit?
A.
To amplify signals
B.
To allow current to flow in one direction
C.
To store charge
D.
To switch signals
Show solution
Solution
Diodes are used in semiconductor memory circuits to allow current to flow in one direction, preventing reverse current that could damage the circuit.
Correct Answer:
B
— To allow current to flow in one direction
Learn More →
Q. What is the primary function of a diode in a series circuit?
A.
To amplify current
B.
To allow current to flow in one direction
C.
To store electrical energy
D.
To increase voltage
Show solution
Solution
A diode allows current to flow in one direction, making it essential for controlling current in series circuits.
Correct Answer:
B
— To allow current to flow in one direction
Learn More →
Q. What is the primary function of a diode in a series-parallel circuit?
A.
To amplify signals
B.
To allow current to flow in one direction
C.
To store electrical energy
D.
To resist current flow
Show solution
Solution
Diodes are used to allow current to flow in one direction, making them essential in rectifying circuits.
Correct Answer:
B
— To allow current to flow in one direction
Learn More →
Q. What is the primary function of a diode in an AC circuit?
A.
To amplify the signal
B.
To rectify the current
C.
To filter noise
D.
To provide feedback
Show solution
Solution
Diodes are used to rectify alternating current (AC) into direct current (DC) by allowing current to flow in one direction only.
Correct Answer:
B
— To rectify the current
Learn More →
Q. What is the primary function of a FET?
A.
Current amplification
B.
Voltage amplification
C.
Voltage control
D.
Power control
Show solution
Solution
A FET primarily functions as a voltage-controlled device, where the output current is controlled by the input voltage.
Correct Answer:
C
— Voltage control
Learn More →
Q. What is the primary function of a Field Effect Transistor (FET)?
A.
To amplify current
B.
To control voltage
C.
To switch electronic signals
D.
To rectify AC to DC
Show solution
Solution
FETs are primarily used to switch electronic signals due to their high input impedance and low power consumption.
Correct Answer:
C
— To switch electronic signals
Learn More →
Q. What is the primary function of a MOSFET?
A.
To amplify signals
B.
To switch electronic signals
C.
To rectify AC signals
D.
To store energy
Show solution
Solution
MOSFETs are primarily used as electronic switches in various applications due to their high efficiency.
Correct Answer:
B
— To switch electronic signals
Learn More →
Q. What is the primary function of a Programmable Logic Device (PLD)?
A.
To amplify signals
B.
To perform logic operations
C.
To rectify AC to DC
D.
To store data
Show solution
Solution
PLDs are used to perform logic operations by allowing users to configure the logic functions.
Correct Answer:
B
— To perform logic operations
Learn More →
Q. What is the primary function of a rectifier in a circuit?
A.
Convert AC to DC
B.
Amplify signals
C.
Filter noise
D.
Store energy
Show solution
Solution
The primary function of a rectifier is to convert alternating current (AC) to direct current (DC).
Correct Answer:
A
— Convert AC to DC
Learn More →
Q. What is the primary function of a rectifier in semiconductor memory?
A.
To convert AC to DC
B.
To amplify signals
C.
To store charge
D.
To switch signals
Show solution
Solution
Rectifiers are used in semiconductor memory to convert alternating current (AC) to direct current (DC), which is necessary for the operation of digital circuits.
Correct Answer:
A
— To convert AC to DC
Learn More →
Q. What is the primary function of a rectifier?
A.
To convert DC to AC
B.
To convert AC to DC
C.
To amplify signals
D.
To filter noise
Show solution
Solution
A rectifier's primary function is to convert alternating current (AC) to direct current (DC).
Correct Answer:
B
— To convert AC to DC
Learn More →
Q. What is the primary function of a thyristor?
A.
To amplify signals
B.
To rectify AC to DC
C.
To switch electrical power
D.
To regulate voltage
Show solution
Solution
Thyristors are primarily used as electronic switches to control power in circuits.
Correct Answer:
C
— To switch electrical power
Learn More →
Showing 211 to 240 of 432 (15 Pages)
