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Home Electronics Operational Amplifiers See What Others Are Saying!
  • Question
  • The major difference between ground and virtual ground is that virtual ground is only a:


  • Options
  • A. voltage reference
  • B. current reference
  • C. power reference
  • D. difference reference

  • Correct Answer
  • voltage reference 


  • More questions

    • 1. A resistance temperature detector produces a voltage for a given change in temperature.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. The sum of all the voltage drops in a series circuit equals the source voltage.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. The magnetic field, current through the Hall element, and Hall voltage are all at right angles to each other.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. In a series RLC circuit, at above resonance the circuit is more capacitive than it is inductive.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. What is the product-over-sum result of 150 and 6800?

    • Options
    • A. 150
    • B. 146.7
    • C. 0.006
    • D. 6800
    • Discuss
    • 6. How many logic states does an S-R flip-flop have?

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 5
    • Discuss
    • 7. If the primary of a 4:1 turns transformer dissipates 5 W, what is the secondary power?

    • Options
    • A. 5.0 W
    • B. 1.25 pW
    • C. 9.5 W
    • D. 20.0 mW
    • Discuss
    • 8. In a common-mode input to an op-amp, both inputs are connected to the same signal source.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. A step-up transformer will have a turns ratio greater than 1.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. The number 5200 ×10?2 equals ___ × 101.

    • Options
    • A. 0.52
    • B. 5.2
    • C. 52
    • D. 520
    • Discuss


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