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  • Question

  • In the given figure, of potentiometer V0 = Vi (R0/Ri) only when
    In the given figure, of potentiometer V0 = Vi (R0/Ri) only when RL = 0 RL = ? RL is neither low nor


  • Options
  • A. RL = 0
  • B. RL = ?
  • C. RL is neither low nor high
  • D. RL is low but not zero

  • Correct Answer
  • RL = ? 

    Explanation
    If RL is not infinite, the voltage ratio of potentiometer depends on the value of RL. This is called loading effect.

    Automatic Control Systems problems

    Search Results

    • 1. The given figure shows a pole zero diagram. The transfer function G(j1) is

    • Options
    • A. 0.5 ?0
    • B. 2.7 ?- 31°
    • C. 2 ?45°
    • D. 2 ?- 67.4°
      • Discuss
    • 2. For the given figure C(s)/R(s)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 3. For the given figure,

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. In Bode diagram (log magnitude plot) the factor in the transfer function gives a line having slope

    • Options
    • A. -20 dB per octave
    • B. -10 dB per octave
    • C. -6 dB per octave
    • D. -2 dB per octave
      • Discuss
    • 5. If error voltage is e(t), integral square error =

    • Options
    • A. e2(t) dt
    • B.
    • C.
    • D. none of the above
      • Discuss
    • 6. Bode magnitude plot is drawn between

    • Options
    • A. magnitude of network function and ?
    • B. dB magnitude and log ?
    • C. dB magnitude and ?
    • D. loge (magnitude) and log ?
      • Discuss
    • 7. If a system is to follow arbitrary inputs accurately the bandwidth should be

    • Options
    • A. large
    • B. small
    • C. very small
    • D. neither small nor large
      • Discuss
    • 8. For the circuit in the given figure,

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. For the given figure C(s)/R(s)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 10. For the circuit in the given figure, V2(s)/V1(s) =

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss

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