Analog Electronics MCQs
Analog Electronics MCQs
These Analog Electronics multiple-choice questions and their answers will help you strengthen your grip on the subject of Analog Electronics. You can prepare for an upcoming exam or job interview with these 90+ Analog Electronics MCQs.
So scroll down and start answering.
1: What is the common-mode-rejection-ratio (CMRR) of an ideal op-amp?
A. One
B. Infinite
C. Zero
2: What is the term used for a circuit in which, for a sinusoidal input with frequency f, any steady state output is also sinusoidal with frequency f?
A. Linear circuit
B. Phased circuit
C. Sinusoidal circuit
D. Phase-looped circuit
3: In an alternating-current circuit, what is the relationship between the impedance of a capacitor and the frequency of the current?
A. The impedance is independent of frequency.
B. The impedance increases with frequency.
C. The impedance decreases with frequency.
4: A typical material used for capacitor leads is
A. bismuth
B. tinned copper
C. silicon
D. carbon
5: The voltage at which a Zener diode starts conducting when reverse biased is called:
A. Negative Voltage
B. Breakdown Voltage
C. Reverse Bias Point
D. Bias Voltage
6: What is the term for the maximum rate of change of output voltage of an op-amp?
A. offset rate
B. slew rate
C. pinch-off rate
D. breakdown rate
7: Two inductors connected in series certainly have
A. the same inductance
B. the same reactance
C. the same current
D. the same impedance
8: True or False? A variable inductor can only be constructed with the use of superconductors.
A. False
B. True
9: What is the open-loop gain of an ideal op-amp?
A. Zero
B. One
C. Infinite
10: How is the charge stored in a capacitor related to the voltage applied to the capacitor?
A. The charge is inversely proportional to the appiled voltage.
B. The charge is independent of the applied voltage.
C. The charge is proportional to the applied voltage.
11: Which components form a Darlington pair?
A. One rectifier diode and one Zener diode
B. One BJT and one rectifier diode
C. Two bipolar transistors
D. Two rectifier diodes
12: A diplexer has how many output connections?
A. Three
B. One
C. Four
D. Two
13: True or False: A photodiode connected in photoconductive mode has better response time than that connected in photovoltaic mode.
A. False
B. True
14: Which of the following is true about the resistance in a "short circuit?"
A. A short circuit has very little resistance.
B. A short circuit has a great deal of resistance.
15: Which of the following applications is a typical use for a transformer?
A. changing the voltage of an alternating-current signal
B. changing the capacitance of a capacitor to a different fixed value
C. changing the frequency of an alternating-current signal
D. connecting two branches of a circuit in parallel
16: Under what physical conditions is magnetic energy stored in an inductor?
A. when current is flowing through the inductor
B. when a static charge is present in the inductor
C. any time that the resistance is above a critical value
17: True or False: If a diode is forward biased, its P-type region is connected to the positive terminal of a battery.
A. True
B. False
18: What is the resulting resistance of 4 equal resistors connected in parallel?
A. Four times the individual resistor.
B. One half of the individual resistor.
C. One quarter of the individual resistor.
D. Twice the individual resistor.
19: What is the ratio of a transistor’s signal output to its signal input called?
A. Gain
B. Impedance
C. Signal Response
D. Current Response
20: True or False? Circuit elements in series always have the same current as each other.
A. False
B. True
21: What is the difference between the upper and lower frequencies in a continuous set of frequencies called?
A. bandwidth
B. phase
C. gain
22: What is the forward voltage drop in a normal silicon diode?
A. 6 – 7 volts
B. 1 – 2 volts
C. 0.6 – 0.7 volts
D. 0.1 – 0.2 volts
23: Which is the correct way to connect an ammeter with the circuit element being measured?
A. in parallel
B. in series
24: What is the name for a circuit that produces a repetitive signal like a square wave or sine wave?
A. swing circuit
B. attenuator
C. oscillator
D. pattern modulator
25: Which of the following physical arrangements is a simple example of an inductor?
A. a coil of insulated wire
B. two parallel metal sheets
C. two hinged gold leaves
26: A four-diode bridge may be used for
A. Half-wave Rectification
B. Full-wave Rectification
27: Which electronic component can be used to conduct current only in one direction?
A. resistor
B. capacitor
C. diode
D. inductor
28: Which of the following physical arrangements is a simple example of a capacitor?
A. two parallel metal sheets
B. a coil of insulated wire
C. a braid of copper strands
29: For what purpose is a Zener diode normally used?
A. RF tuning
B. voltage regulation
30: What is the term used for the process by which a diode converts alternating current into direct current?
A. Resolution
B. Biasing
C. Rectification
D. Filtering
31: Which of the following are appropriate units for electric potential?
A. Amperes
B. Ohms
C. Volts
D. Newtons
32: What does MOSFET stand for?
A. Mono-oxide-semiconductor-field-effect-transistor
B. Mono-oxide-substrate-field-effect-transistor
C. Metal-oxide-substrate-functional-effect-transistor
D. Metal-oxide-semiconductor-field-effect-transistor
33: In a series circuit consisting of a battery and two identical resistors, how do the currents through the two resistors compare?
A. The same amount of current flows through each resistor.
B. More current flows through one resistor than flows through the other.
34: Which is the correct way to connect a voltmeter with the circuit element being measured?
A. in series
B. in parallel
35: In what form is the energy stored in a charged capacitor?
A. The energy is stored as a tensioned spring.
B. The energy is stored as an electric field.
C. The energy is stored in a chemical paste.
D. The energy is stored as a magnetic field.
36: Which of the following are appropriate units for resistance?
A. Ohms
B. Volts
C. Amperes
D. Farads
37: In a step-down transformer, which is larger ?
A. Secondary Voltage
B. Primary Voltage
38: Which of the following are appropriate units for capacitance?
A. Ohms
B. Volts
C. Hertz
D. Farads
39: In a circuit consisting of a battery in parallel with two identical parallel resistors, how do the currents through the two resistors compare?
A. More current flows through one resistor than flows through the other.
B. The same amount of current flows through each resistor.
40: How does the total capacitance of two capacitors arranged together in parallel compare to the individual capacitances of each?
A. The total capacitance is less than either of the individual capacitances.
B. The total capacitance is greater than either of the individual capacitances.
C. The total capacitance is the ratio of the individual capacitances.
D. The total capacitance is the reciprocal of the larger of the two capacitances.
41: In a series circuit consisting of a battery and two resistors with different resistances, how do the currents through the two resistors compare?
A. More current flows through one resistor than flows through the other.
B. The same amount of current flows through each resistor.
42: As frequency increases, the impedance of an inductor?
A. Decreases
B. Increases
43: What kind of semiconductor material is created by doping a silicon crystal with boron?
A. p-type
B. n-type
44: Which of these is a terminal in a field effect transistor?
A. pole
B. drain
C. collector
D. base
45: Two identical bulbs connected in parallel with each other and an ideal voltage supply glow _______ either one of the bulbs connected to the same supply by itself.
A. equally brightly compared with
B. brighter than
C. more dimly than
46: In an N-channel enhancement mode FET, the positive gate-source voltage required to form the depletion region and the conductive channel is called:
A. pinch-off voltage
B. channel voltage
C. threshold voltage
D. depletion voltage
47: The impedance of a capacitance ______ as a function of frequency.
A. Increases
B. Decreases
48: Which of the following are appropriate units for electromotive force?
A. Amperes
B. Ohms
C. Newtons
D. Volts
49: What is the effect of a reverse bias on the depletion region of a diode?
A. There is no effect.
B. It increases in width.
C. It decreases in width.
50: True or False? Current can only flow through a battery from the negative terminal to the positive terminal.
A. False
B. True
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