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Home ‣ Electronics ‣ Operational Amplifiers See What Others Are Saying!
  • Question

  • A 555 timer can be configured as an astable multivibrator.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • More questions

    • 1. A Wheatstone bridge can be used to determine an unknown

    • Options
    • A. current
    • B. resistance
    • C. power
    • D. voltage
      • Discuss
    • 2. If an input signal is applied to the inverting input of an op-amp with the noninverting input grounded, the output signal would be opposite in polarity with the input.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. 

      The phase angle in the given circuit equals___.


    • Options
    • A. 90°
    • B. 36.87°
    • C. 0°
    • D. 53.13°
      • Discuss
    • 4. The total resistance in a parallel circuit is always greater than the lowest-value branch resistor.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. 

      How much voltage is dropped across R3 in the given circuit?


    • Options
    • A. 46 V
    • B. 34 V
    • C. 23 V
    • D. 12 V
      • Discuss
    • 6. 

      What would these meter readings indicate about the circuit in the given circuit?

      Meter Readings: I = 0 mA, V = 0 V


    • Options
    • A. R1 is open.
    • B. R2 is open.
    • C. The fuse is open.
    • D. The circuit is operating normally.
      • Discuss
    • 7. The TO-5 operational amplifier package can have 5 pins.

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

      After the rising edge of the input pulse occurs, it takes ______ for the voltage across the resistor to decrease to zero in the given circuit.


    • Options
    • A. 0 s
    • B. 68 µs
    • C. 340 µs
    • D. 500 µs
      • Discuss
    • 9. 

      Which circuit is represented by the frequency response curve in the given figure?


    • Options
    • A. High-pass filter
    • B. Low-pass filter
    • C. Band-pass filter
    • D. Band-stop filter


      • Discuss
    • 10. Which statement about a series RC circuit is true?

    • Options
    • A. The capacitor's voltage drop is in phase with the resistor's voltage drop.
    • B. The current leads the source voltage.
    • C. The current lags the source voltage.
    • D. The resistor voltage lags the current.
      • Discuss

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