Find Complete and recently updated Correct Question and answers of Analog Electronics of Upwork. All Answers updated regularly with new questions. Upwork Analog Electronics test answers of 2016.

Question:* Which of the following are appropriate units for resistance?

Answer: • Ohms

Question:* The application of electric voltage to a P-N junction is known as:

Answer: • Bias

Question:* True or False: Zener breakdown and Avalanche breakdown can occur in the same diode.

Answer: • True

Question:* True or False? An analog circuit cannot function without a connection to earth ground.

Answer: • False

Question:* In which technique is the frequency of a carrier signal varied according to the amplitude of an information-bearing signal?

Answer: • frequency modulation

Question:* Two inductors connected in series certainly have

Answer: • the same current

Question:* In a circuit consisting of a battery in parallel with two identical parallel resistors, how do the currents through the two resistors compare?

Answer: • The same amount of current flows through each resistor.

Question:* True or False? Circuit elements in series always have the same current as each other.

Answer: • True

Question:* True or False: If a diode is forward biased, its P-type region is connected to the positive terminal of a battery.

Answer: • True

Question:* In a series circuit consisting of a battery and two identical resistors, how do the currents through the two resistors compare?

Answer: • The same amount of current flows through each resistor.

Question:* Which of the following applications is a typical use for a transformer?

Answer: • changing the voltage of an alternating-current signal

Question:* In what form is the energy stored in a charged capacitor?

Answer: • The energy is stored as an electric field.

Question:* Under what physical conditions is magnetic energy stored in an inductor?

Answer: • when current is flowing through the inductor

Question:* Which of the following are appropriate units for electric potential?

Answer: • Volts

Question:* A four-diode bridge may be used for

Answer: • Full-wave Rectification

Question:* What is the term used for the process by which a diode converts alternating current into direct current?

Answer: • Rectification

Question:* What is the name for a circuit that produces a repetitive signal like a square wave or sine wave?

Answer: • oscillator

Question:* Which of the following physical arrangements is a simple example of a capacitor?

Answer: • two parallel metal sheets

Question:* Which electronic component can be used to conduct current only in one direction?

Answer: • diode

Question:* Which of the following are appropriate units for capacitance?

Answer: • Farads

Question:* Which is the correct way to connect an ammeter with the circuit element being measured?

Answer: • in series

Question:* What is the forward voltage drop in a normal silicon diode?

Answer: • 0.6 – 0.7 volts

Question:* Which of the following physical arrangements is a simple example of an inductor?

Answer: • a coil of insulated wire

Question:* Which of the following are appropriate units for current?

Answer: • Amperes

Question:* What is the difference between the upper and lower frequencies in a continuous set of frequencies called?

Answer: • bandwidth

Question:* What does MOSFET stand for?

Answer: • Metal-oxide-semiconductor-field-effect-transistor

Question:* Which is the correct way to connect a voltmeter with the circuit element being measured?

Answer: • in parallel

Question:* What is the ratio of a transistor’s signal output to its signal input called?

Answer: • Gain

Question:* For what purpose is a Zener diode normally used?

Answer: • voltage regulation

Question:* True or False: A photodiode connected in photoconductive mode has better response time than that connected in photovoltaic mode.

Answer: • True

Question:* Which of the following is true about the resistance in a "short circuit?"

Answer: • A short circuit has very little resistance.

Question:* What is the open-loop gain of an ideal op-amp?

Answer: • Infinite

Question:* Which components form a Darlington pair?

Answer: • Two bipolar transistors

Question:* What kind of semiconductor material is created by doping a silicon crystal with boron?

Answer: • p-type

Question:* A typical material used for capacitor leads is

Answer: • tinned copper

Question:* True or False? A variable inductor can only be constructed with the use of superconductors.

Answer: • False

Question:* In an N-channel enhancement mode FET, the positive gate-source voltage required to form the depletion region and the conductive channel is called:

Answer: • threshold voltage

Question:* True or False? Current can only flow through a battery from the negative terminal to the positive terminal.

Answer: • False

Question:* In a series circuit consisting of a battery and two resistors with different resistances, how do the currents through the two resistors compare?

Answer: • The same amount of current flows through each resistor.

Question:* What is the term for the maximum rate of change of output voltage of an op-amp?

Answer: • slew rate

Question:* When a series RLC circuit is driven at resonance, how does the impedance of the circuit compare to the resistance in the circuit?

Answer: • The impedance is equal to the resistance.

Question:* How does the total capacitance of two capacitors arranged together in parallel compare to the individual capacitances of each?

Answer: • The total capacitance is greater than either of the individual capacitances.

Question:* How is the charge stored in a capacitor related to the voltage applied to the capacitor?

Answer: • The charge is proportional to the applied voltage.

Question:* 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.

Answer: • equally brightly compared with

Question:* Which of these is a terminal in a field effect transistor?

Answer: • drain

Question:* Which of the following are appropriate units for electromotive force?

Answer: • Volts

Question:* The voltage at which a Zener diode starts conducting when reverse biased is called:

Answer: • Breakdown Voltage

Question:* In an alternating-current circuit, what is the relationship between the impedance of an inductor and the frequency of the current?

Answer: • The impedance increases with frequency.

Question:* Compare the currents of these two circuits: (1) a battery connected in series with four identical series resistors and (2) the same battery connected to only three of the identical series resistors.

Answer: • More current flows in the circuit with three resistors.

Question:* Which of these has no P-N junctions?

Answer: • Thermistor

Question:* In a series RLC alternating-current circuit, which element will dominate the reactance of the circuit when the frequency is above resonance?

Answer: • the inductor

Question:* Which of the following are appropriate units for impedance?

Answer: • Ohms

Question:* How does the total capacitance of two capacitors arranged together in series compare to the individual capacitances of each?

Answer: • The total capacitance is less than either of the individual capacitances.

Question:* What is the effect of a reverse bias on the depletion region of a diode?

Answer: • It increases in width.

Question:* What is the common-mode-rejection-ratio (CMRR) of an ideal op-amp?

Answer: • Infinite

Question:* Which of the following statements is certainly true about two capacitors that have been charged in parallel?

Answer: • Each capacitor has the same voltage drop.

Question:* Which is the output terminal in a BJT connected in a common-emitter configuration?

Answer: • collector

Question:* Under ideal conditions, which input voltage does an op-amp amplify?

Answer: • differential input voltage

Question:* In an alternating-current circuit, what is the relationship between the impedance of a resistor and the frequency of the current?

Answer: • The impedance is independent of frequency.

Question:* True or False: The ratio of visible light produced to power consumed is more for LEDs than for incandescent light bulbs.

Answer: • True

Question:* Which of these is a common application of a varactor diode?

Answer: • Tuning circuit

Question:* In a circuit with a resistor and an inductor in series with an alternating-current supply, how does is the phase of the current in the circuit related to the phase of the voltage of the supply?

Answer: • The current lags the voltage.

Question:* In a circuit with a capacitor and a resistor in series with an alternating-current supply, how does the phase of the current in the circuit related to the phase of the voltage of the supply?

Answer: • The current leads the voltage.

Question:* True or False? Incandescent light bulbs can only be used in alternating-current circuits.

Answer: • False

Question:* What is the term used for the leakage current that flows through a photodiode when no photons are entering it?

Answer: • Dark current

Question:* Which of these is NOT a method used for doping semiconductors?

Answer: • Etching

Question:* Which of these devices has a rectifying metal-semiconductor junction?

Answer: • Schottky diode

Question:* In a series RLC alternating-current circuit, which element will dominate the reactance of the circuit when the frequency is below resonance?

Answer: • the capacitor

Question:* In an alternating-current circuit, what is the relationship between the impedance of a capacitor and the frequency of the current?

Answer: • The impedance decreases with frequency.

Question:* Which of the following statements is certainly true about two capacitors that have been charged in series?

Answer: • The same amount of charge is stored in each capacitor.

Question:* What is another name for a common collector amplifier?

Answer: • emitter follower

Question:* 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?

Answer: • Linear circuit

Question:* True or False? A transformer requires a ferrite core.

Answer: • False

Question:* When voltage across a varactor diode is varied, there is a change in its

Answer: • Capacitance

Question:* In a real op-amp, the voltage required across the input terminals to drive the output to zero is called:

Answer: • input offset voltage

Question:* Compare the currents of these two circuits: (1) a battery connected in parallel with four identical parallel resistors and (2) the same battery connected to only three of the identical parallel resistors.

Answer: • More current flows in the circuit with four resistors.

Question:* In an N-channel depletion mode FET, the negative gate-source voltage at which the depletion region expands to completely close the conductive channel is called:

Answer: • pinch-off voltage

Question:* Two identical bulbs connected in series with an ideal voltage supply glow _______ either one of the bulbs connected to the same supply by itself.

Answer: • more dimly than

Question:* Which of these is used in the graphical analysis of non-linear circuits?

Answer: • Load line

Question:* What can be observed in a tunnel diode connected in forward bias?

Answer: • Negative Resistance

Question:* True or False: In a Class A amplifier 50% of the input signal is used - the active element carries current half of each cycle, and is turned off for the other half.

Answer: • False

Question:* True or False: Schottky diodes have very high reverse recovery times compared to P-N diodes.

Answer: • False

Question:* True or false: Doping a silicon crystal with phosphorous results in a p-type semiconductor.

Answer: • False

Question:* What does a Q-point of a transistor indicate?

Answer: • The collector-emitter current with no input

Monday, December 21, 2015

Analog Electronics test answers of 2016.

Question:* Which of the following are appropriate units for resistance?

Answer: • Ohms

Question:* The application of electric voltage to a P-N junction is known as:

Answer: • Bias

Question:* True or False: Zener breakdown and Avalanche breakdown can occur in the same diode.

Answer: • True

Question:* True or False? An analog circuit cannot function without a connection to earth ground.

Answer: • False

Question:* In which technique is the frequency of a carrier signal varied according to the amplitude of an information-bearing signal?

Answer: • frequency modulation

Question:* Two inductors connected in series certainly have

Answer: • the same current

Question:* In a circuit consisting of a battery in parallel with two identical parallel resistors, how do the currents through the two resistors compare?

Answer: • The same amount of current flows through each resistor.

Question:* True or False? Circuit elements in series always have the same current as each other.

Answer: • True

Question:* True or False: If a diode is forward biased, its P-type region is connected to the positive terminal of a battery.

Answer: • True

Question:* In a series circuit consisting of a battery and two identical resistors, how do the currents through the two resistors compare?

Answer: • The same amount of current flows through each resistor.

Question:* Which of the following applications is a typical use for a transformer?

Answer: • changing the voltage of an alternating-current signal

Question:* In what form is the energy stored in a charged capacitor?

Answer: • The energy is stored as an electric field.

Question:* Under what physical conditions is magnetic energy stored in an inductor?

Answer: • when current is flowing through the inductor

Question:* Which of the following are appropriate units for electric potential?

Answer: • Volts

Question:* A four-diode bridge may be used for

Answer: • Full-wave Rectification

Question:* What is the term used for the process by which a diode converts alternating current into direct current?

Answer: • Rectification

Question:* What is the name for a circuit that produces a repetitive signal like a square wave or sine wave?

Answer: • oscillator

Question:* Which of the following physical arrangements is a simple example of a capacitor?

Answer: • two parallel metal sheets

Question:* Which electronic component can be used to conduct current only in one direction?

Answer: • diode

Question:* Which of the following are appropriate units for capacitance?

Answer: • Farads

Question:* Which is the correct way to connect an ammeter with the circuit element being measured?

Answer: • in series

Question:* What is the forward voltage drop in a normal silicon diode?

Answer: • 0.6 – 0.7 volts

Question:* Which of the following physical arrangements is a simple example of an inductor?

Answer: • a coil of insulated wire

Question:* Which of the following are appropriate units for current?

Answer: • Amperes

Question:* What is the difference between the upper and lower frequencies in a continuous set of frequencies called?

Answer: • bandwidth

Question:* What does MOSFET stand for?

Answer: • Metal-oxide-semiconductor-field-effect-transistor

Question:* Which is the correct way to connect a voltmeter with the circuit element being measured?

Answer: • in parallel

Question:* What is the ratio of a transistor’s signal output to its signal input called?

Answer: • Gain

Question:* For what purpose is a Zener diode normally used?

Answer: • voltage regulation

Question:* True or False: A photodiode connected in photoconductive mode has better response time than that connected in photovoltaic mode.

Answer: • True

Question:* Which of the following is true about the resistance in a "short circuit?"

Answer: • A short circuit has very little resistance.

Question:* What is the open-loop gain of an ideal op-amp?

Answer: • Infinite

Question:* Which components form a Darlington pair?

Answer: • Two bipolar transistors

Question:* What kind of semiconductor material is created by doping a silicon crystal with boron?

Answer: • p-type

Question:* A typical material used for capacitor leads is

Answer: • tinned copper

Question:* True or False? A variable inductor can only be constructed with the use of superconductors.

Answer: • False

Question:* In an N-channel enhancement mode FET, the positive gate-source voltage required to form the depletion region and the conductive channel is called:

Answer: • threshold voltage

Question:* True or False? Current can only flow through a battery from the negative terminal to the positive terminal.

Answer: • False

Question:* In a series circuit consisting of a battery and two resistors with different resistances, how do the currents through the two resistors compare?

Answer: • The same amount of current flows through each resistor.