logo

CuriousTab

CuriousTab

Discussion

Home ‣ Electronics ‣ Capacitors See What Others Are Saying!
  • Question

  • What is the impedance of this circuit?

    What is the impedance of this circuit? 5928 ? 2000 ? 1902 ? 1798 ? Impedance Cannot be Directly Meas


  • Options
  • A. 5928 Ω
  • B. 2000 Ω
  • C. 1902 Ω
  • D. 1798 Ω

  • Correct Answer
  • 5928 Ω 

    Explanation
    Impedance Cannot be Directly Measured, We Need to find Xc first.

    So,

    Xc = 1/2?fC.

    Xc = 1/( 2 x 3.14 x 5000 x 0.01 x 10-6 ).

    Xc = 3184.7.

    Z = Sqrt( Xc2 + R2 ).

    Z = Sqrt( 3184.72 + 50002 ).

    Z = 5928 ?.

    More questions

    • 1. What procedure should be followed when troubleshooting with an ammeter or voltmeter?

    • Options
    • A. Short the leads and adjust.
    • B. Check the meter's external power supply.
    • C. Start with the highest scale and adjust down to a lower scale.
    • D. Start with the lowest scale and adjust up to a higher scale.
      • Discuss
    • 2. Voltage-divider bias provides:

    • Options
    • A. an unstable Q point
    • B. a stable Q point
    • C. a Q point that easily varies with changes in the transistor's current gain
    • D. a Q point that is stable and easily varies with changes in the transistor's current gain
      • Discuss
    • 3. Kirchhoff's voltage law states that:

    • Options
    • A. the sum of the voltage drops in a series circuit is equal to the total applied voltage
    • B. the algebraic sum of the resistances is equal to the sum of the voltages
    • C. the algebraic sum of the individual currents around a closed loop is zero
    • D. the voltages developed across each element in a series circuit are identical
      • Discuss
    • 4. Clampers are often called peak detectors.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A transformer that has 700 turns in the primary and 35 turns in the secondary has a turns ratio of 20:1.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The operands in an addition operation consist of the augend and the addend.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. In a BJT, the collector current is approximately equal to the base current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A sine wave has:

    • Options
    • A. four quadrants
    • B. two alternations
    • C. one period
    • D. all of the above
      • Discuss
    • 9. The greater the selectivity, the wider the bandwidth.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The unit of magnetic flux density is the weber.

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

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.