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ELEX 5

ELEX 5
59問 • 2年前
  • John Cerda
    • 通報

    問題一覧

  • 1

    Ionization within a P-N junction causes a layer on each side of the barrier called the

    Depletion Region

  • 2

    Connecting a lead from the negative to the positive of a battery will produce:

    short circuit

  • 3

    PLCC package has leads on

    4 sides

  • 4

    The purpose of installing thyrectors across the incoming power lines to the speed control system is

    protect drive circuits from high voltage transients

  • 5

    A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current

    is increased

  • 6

    When the output of a tristate shift register is disable, the output level is placed in a

    float state and a high impedance state

  • 7

    One application of a digital multiplexer is to facilitate:

    parallel to serial data conversation

  • 8

    The circuit shown is a/an:

    CMOS NAND Gate

  • 9

    Determine the value of α when β = 100

    0.99

  • 10

    The device shown in the given figure is checked with a logic probe and the output is HIGH.

    For the input conditions shown the output should be neither HIGH nor LOW; the device is shorted to V ∞.

  • 11

    The step-by-step instructions that solve a problem are called _____.

    algorithm

  • 12

    One output structure of a TTL gate is often referred to as a ________.

    totem-pole arrangement

  • 13

    If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density

    decreases

  • 14

    The hybrid or h-parameter description is widely used in electronic circuits and is one convenient model for a current amplifier. Which of the following is the open-circuit output conductance?

    h22

  • 15

    value for this combination is:

    2k3

  • 16

    The four symbols are:

    Capacitor, Microphone, Potentiometer, Electrolytic

  • 17

    The shaded resistor is called the:

    Load Resistor

  • 18

    Why is a refresh cycle necessary for a dynamic RAM?

    The refresh cycle keeps the charge on the capacitor cells.

  • 19

    The frequency of a pulse train is 2 kHz. The pulse period is ________.

    500 us

  • 20

    Which of the following statements does NOT describe an advantage of digital technology?

    The values may vary over a continuous range.

  • 21

    Which is not part of emitter-coupled logic (ECL)?

    Totem Pole Arrangement

  • 22

    The rate at which work is performed is called:

    Power

  • 23

    A P-N junction mimics a closed switch when it:

    has a low junction resistance

  • 24

    Which format can send several bits of information faster?

    Parallel

  • 25

    When and who discovered that more than one transistor could be constructed on a single piece of semiconductor material:

    1959, Robert Noyce

  • 26

    Most TTL logic used today is some form of ________.

    Schottky TTL

  • 27

    The amount of current for an SCR to stay ON after triggering is the

    Holding Current

  • 28

    When is a P-N junction formed?

    the point at which two opposite doped materials come together

  • 29

    What do you call the necessary application of a dc voltage of a transistor to produce a desired mode of operation?

    Bias

  • 30

    Which type of statement does not occur in computer programs?

    Denial

  • 31

    Where is the address of the instruction to be executed later?

    Program Counter

  • 32

    The ____ grid in an electron tube is where the input signal is usually applied.

    control

  • 33

    Refer to the given figure. What type of output arrangement is being used for the output?

    Totem Pole

  • 34

    To be called object-oriented, a programming language must allow

    inheritance

  • 35

    Which condition cause the output of XOR gate to be high?

    only 1 input is high

  • 36

    In the decimal numbering system, what is the MSD

    the digit with most weight

  • 37

    In a class B push-pull amplifier, the transistors are biased slightly above cutoff to avoid

    crossover distortion

  • 38

    The bandwidth of dc amplifier having an upper critical frequency of 100 kHz is

    100 kHz

  • 39

    Because 4096 = 2^12, a 4K × 1 RAM requires ________ address bits to access all locations.

    12

  • 40

    Instrumentation amplifier is used in

    high noise environment

  • 41

    How much is the base-to-emitter voltage of a transistor in the "on" state?

    0.7 V

  • 42

    In an rlc ac series circuit, if resistance is much smaller than inductive or capacitive reactance and the system is operating at a frequency much higher than resonant frequency

    The phase angle is close to 90° and the power factor is small.

  • 43

    The implementation of simplified sum-of-products expressions may be easily implemented into actual logic circuits using all universal ________ gates with little or no increase in circuit complexity.

    NAND

  • 44

    what causes the depletion region?

    diffusion

  • 45

    A standard TTL circuit with totem pole output can sink in the LOW state, I ol(max) _____

    16 mA

  • 46

    Refer to given figure. What is the output voltage?

    - Vsat

  • 47

    Fill in the blanks. A NAND Gate has active-___ inputs and an active-____ output.

    HIGH, LOW

  • 48

    Bonds that involve the essentially complete transfer of electrons from one to another one.

    Ionic Bonding

  • 49

    What is the typical invalid voltage for a binary signal?

    0.8 to 2 V

  • 50

    The minimum number of address lines needed for a 64K memory.

    16

  • 51

    In practice, what is normally varied in order to change the frequency of oscillation?

    capacitance

  • 52

    What is the voltage across R1 if the P-N junction is made of silicon?

    11.3 V

  • 53

    What is the output voltage below?

    + Vsat

  • 54

    Which is not magnetic storage device?

    Optical Disk

  • 55

    These networks have a capacitor connected directly from input to output with a resistive element in parallel with the output signal but may or may not have a series dc supply as an added element.

    Clampers

  • 56

    Which is not a MOSFET terminal?

    Base

  • 57

    The electrical energy consumed by a coil is stored in the form of

    magnetic field

  • 58

    Holding the resistance constant, which of the following will happen if current increases?

    voltage increases

  • 59

    All other factors remaining the same, what is the effect of increases wire gauge from AWG 22 to AWG 26?

    Resistance increases

    • Basic Communication I

    Basic Communication I

    John Cerda · 100問 · 2年前

    Basic Communication I

    Basic Communication I

    100問 • 2年前
    John Cerda

    Basic Communication II

    Basic Communication II

    John Cerda · 100問 · 2年前

    Basic Communication II

    Basic Communication II

    100問 • 2年前
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    Basic Communication III

    Basic Communication III

    John Cerda · 50問 · 2年前

    Basic Communication III

    Basic Communication III

    50問 • 2年前
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    Amplitude Modulation I

    Amplitude Modulation I

    John Cerda · 100問 · 2年前

    Amplitude Modulation I

    Amplitude Modulation I

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    Amplitude Modulation II

    Amplitude Modulation II

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    Amplitude Modulation II

    Amplitude Modulation II

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    Angle Modulation I

    Angle Modulation I

    John Cerda · 100問 · 2年前

    Angle Modulation I

    Angle Modulation I

    100問 • 2年前
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    Angle Modulation II

    Angle Modulation II

    John Cerda · 58問 · 2年前

    Angle Modulation II

    Angle Modulation II

    58問 • 2年前
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    Transmission Line I

    Transmission Line I

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    Transmission Line I

    Transmission Line I

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    Transmission Line II

    Transmission Line II

    John Cerda · 37問 · 2年前

    Transmission Line II

    Transmission Line II

    37問 • 2年前
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    Differential Calculus

    Differential Calculus

    John Cerda · 84問 · 2年前

    Differential Calculus

    Differential Calculus

    84問 • 2年前
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    Integral Calculus

    Integral Calculus

    John Cerda · 53問 · 2年前

    Integral Calculus

    Integral Calculus

    53問 • 2年前
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    DC Circuit

    DC Circuit

    John Cerda · 63問 · 2年前

    DC Circuit

    DC Circuit

    63問 • 2年前
    John Cerda

    Differential Equation

    Differential Equation

    John Cerda · 21問 · 2年前

    Differential Equation

    Differential Equation

    21問 • 2年前
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    ELEX 2

    ELEX 2

    John Cerda · 100問 · 2年前

    ELEX 2

    ELEX 2

    100問 • 2年前
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    ELEX 3

    ELEX 3

    John Cerda · 100問 · 2年前

    ELEX 3

    ELEX 3

    100問 • 2年前
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    ELEX 4

    ELEX 4

    John Cerda · 100問 · 2年前

    ELEX 4

    ELEX 4

    100問 • 2年前
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    MATH

    MATH

    John Cerda · 78問 · 2年前

    MATH

    MATH

    78問 • 2年前
    John Cerda

    問題一覧

  • 1

    Ionization within a P-N junction causes a layer on each side of the barrier called the

    Depletion Region

  • 2

    Connecting a lead from the negative to the positive of a battery will produce:

    short circuit

  • 3

    PLCC package has leads on

    4 sides

  • 4

    The purpose of installing thyrectors across the incoming power lines to the speed control system is

    protect drive circuits from high voltage transients

  • 5

    A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current

    is increased

  • 6

    When the output of a tristate shift register is disable, the output level is placed in a

    float state and a high impedance state

  • 7

    One application of a digital multiplexer is to facilitate:

    parallel to serial data conversation

  • 8

    The circuit shown is a/an:

    CMOS NAND Gate

  • 9

    Determine the value of α when β = 100

    0.99

  • 10

    The device shown in the given figure is checked with a logic probe and the output is HIGH.

    For the input conditions shown the output should be neither HIGH nor LOW; the device is shorted to V ∞.

  • 11

    The step-by-step instructions that solve a problem are called _____.

    algorithm

  • 12

    One output structure of a TTL gate is often referred to as a ________.

    totem-pole arrangement

  • 13

    If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density

    decreases

  • 14

    The hybrid or h-parameter description is widely used in electronic circuits and is one convenient model for a current amplifier. Which of the following is the open-circuit output conductance?

    h22

  • 15

    value for this combination is:

    2k3

  • 16

    The four symbols are:

    Capacitor, Microphone, Potentiometer, Electrolytic

  • 17

    The shaded resistor is called the:

    Load Resistor

  • 18

    Why is a refresh cycle necessary for a dynamic RAM?

    The refresh cycle keeps the charge on the capacitor cells.

  • 19

    The frequency of a pulse train is 2 kHz. The pulse period is ________.

    500 us

  • 20

    Which of the following statements does NOT describe an advantage of digital technology?

    The values may vary over a continuous range.

  • 21

    Which is not part of emitter-coupled logic (ECL)?

    Totem Pole Arrangement

  • 22

    The rate at which work is performed is called:

    Power

  • 23

    A P-N junction mimics a closed switch when it:

    has a low junction resistance

  • 24

    Which format can send several bits of information faster?

    Parallel

  • 25

    When and who discovered that more than one transistor could be constructed on a single piece of semiconductor material:

    1959, Robert Noyce

  • 26

    Most TTL logic used today is some form of ________.

    Schottky TTL

  • 27

    The amount of current for an SCR to stay ON after triggering is the

    Holding Current

  • 28

    When is a P-N junction formed?

    the point at which two opposite doped materials come together

  • 29

    What do you call the necessary application of a dc voltage of a transistor to produce a desired mode of operation?

    Bias

  • 30

    Which type of statement does not occur in computer programs?

    Denial

  • 31

    Where is the address of the instruction to be executed later?

    Program Counter

  • 32

    The ____ grid in an electron tube is where the input signal is usually applied.

    control

  • 33

    Refer to the given figure. What type of output arrangement is being used for the output?

    Totem Pole

  • 34

    To be called object-oriented, a programming language must allow

    inheritance

  • 35

    Which condition cause the output of XOR gate to be high?

    only 1 input is high

  • 36

    In the decimal numbering system, what is the MSD

    the digit with most weight

  • 37

    In a class B push-pull amplifier, the transistors are biased slightly above cutoff to avoid

    crossover distortion

  • 38

    The bandwidth of dc amplifier having an upper critical frequency of 100 kHz is

    100 kHz

  • 39

    Because 4096 = 2^12, a 4K × 1 RAM requires ________ address bits to access all locations.

    12

  • 40

    Instrumentation amplifier is used in

    high noise environment

  • 41

    How much is the base-to-emitter voltage of a transistor in the "on" state?

    0.7 V

  • 42

    In an rlc ac series circuit, if resistance is much smaller than inductive or capacitive reactance and the system is operating at a frequency much higher than resonant frequency

    The phase angle is close to 90° and the power factor is small.

  • 43

    The implementation of simplified sum-of-products expressions may be easily implemented into actual logic circuits using all universal ________ gates with little or no increase in circuit complexity.

    NAND

  • 44

    what causes the depletion region?

    diffusion

  • 45

    A standard TTL circuit with totem pole output can sink in the LOW state, I ol(max) _____

    16 mA

  • 46

    Refer to given figure. What is the output voltage?

    - Vsat

  • 47

    Fill in the blanks. A NAND Gate has active-___ inputs and an active-____ output.

    HIGH, LOW

  • 48

    Bonds that involve the essentially complete transfer of electrons from one to another one.

    Ionic Bonding

  • 49

    What is the typical invalid voltage for a binary signal?

    0.8 to 2 V

  • 50

    The minimum number of address lines needed for a 64K memory.

    16

  • 51

    In practice, what is normally varied in order to change the frequency of oscillation?

    capacitance

  • 52

    What is the voltage across R1 if the P-N junction is made of silicon?

    11.3 V

  • 53

    What is the output voltage below?

    + Vsat

  • 54

    Which is not magnetic storage device?

    Optical Disk

  • 55

    These networks have a capacitor connected directly from input to output with a resistive element in parallel with the output signal but may or may not have a series dc supply as an added element.

    Clampers

  • 56

    Which is not a MOSFET terminal?

    Base

  • 57

    The electrical energy consumed by a coil is stored in the form of

    magnetic field

  • 58

    Holding the resistance constant, which of the following will happen if current increases?

    voltage increases

  • 59

    All other factors remaining the same, what is the effect of increases wire gauge from AWG 22 to AWG 26?

    Resistance increases