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Home ‣ Electronics ‣ Alternating Current vs Direct Current See What Others Are Saying!
  • Question

  • Signal comparisons may be most easily seen when using which item of test equipment?


  • Options
  • A. spectrum analyzer
  • B. multimeter
  • C. function generator
  • D. dual trace oscilloscope

  • Correct Answer
  • dual trace oscilloscope 

    • More questions

    • 1. If the bandwidth of a filter increases:

    • Options
    • A. Q decreases
    • B. the roll-off rate increases
    • C. the half-power frequency decreases
    • D. the center frequency decreases
      • Discuss
    • 2. Fixed transformers have:

    • Options
    • A. a center-tapped secondary
    • B. multiple windings
    • C. turns ratios that cannot be changed
    • D. a multiple-tapped secondary
      • Discuss
    • 3. The impedance is 160 Ω.


    • Options
    • A. True
    • B. False
      • Discuss
    • 4. What is the output waveform?


    • Options
    • A. sine wave
    • B. square wave
    • C. sawtooth wave
    • D. triangle wave
      • Discuss
    • 5. Which electromagnetic device has a flexible cone?

    • Options
    • A. A speaker
    • B. A dc generator
    • C. A relay
    • D. A solenoid
      • Discuss
    • 6. Series RLC impedance or voltage totals must always be calculated by

    • Options
    • A. adding values vectorially
    • B. graphing the angles
    • C. multiplying the values
    • D. subtracting the values
      • Discuss
    • 7. Voltage sources are added when they are series-opposing.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. 

      What is the total current for the nonideal circuit in the given circuit. If it is at resonance?


    • Options
    • A. 0 A
    • B. 284 µ A
    • C. 3.3 mA
    • D. 38.5 mA
      • Discuss
    • 9. For a given charge difference, electrostatic field strength varies according to:

    • Options
    • A. plate differential
    • B. plate area
    • C. plate distance
    • D. dielectric quantity
      • Discuss
    • 10. 

      What is the resonant frequency in the given circuit?


    • Options
    • A. 11.6 Hz
    • B. 275.8 Hz
    • C. 1.5 kHz
    • D. 3.2 kHz
      • Discuss

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