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Home ‣ Electronics ‣ Arithmetic Operations and Circuits See What Others Are Saying!
  • Question

  • The carry propagation delay in 4-bit full-adder circuits ____________.


  • Options
  • A. is normally not a consideration because the delays are usually in the nanosecond range
  • B. is cumulative for each stage and limits the speed at which arithmetic operations are performed
  • C. decreases in direct ratio to the total number of full-adder stages
  • D. increases in direct ratio to the total number of full-adder stages, but is not a factor in limiting the speed of arithmetic operations

  • Correct Answer
  • is cumulative for each stage and limits the speed at which arithmetic operations are performed 

    • More questions

    • 1. Logic gate circuits contain predictable gate functions that open their outputs.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A reverse biased diode will act as an open switch.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. A transducer does not convert energy from one form to another.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. What is the standard TTL noise margin?

    • Options
    • A. 5.0 V
    • B. 0.2 V
    • C. 0.8 V
    • D. 0.4 V
      • Discuss
    • 5. The total resistance of a series circuit always depends on the highest value resistor in that circuit.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A transistor used in a digital circuit will have two operating states, which are cutoff and saturation.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. What is the output voltage?


    • Options
    • A. 15 V
    • B. 5 V
    • C. ?5 V
    • D. ?15 V
      • Discuss
    • 8. A transistor may be used as a switching device or as a:

    • Options
    • A. fixed resistor
    • B. tuning device
    • C. rectifier
    • D. variable resistor
      • Discuss
    • 9. The total resistance of a series circuit is equal to the average of all the resistance values.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Ferromagnetic materials have pre-existing magnetic fields.

    • Options
    • A. True
    • B. False
      • Discuss

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