logo

CuriousTab

CuriousTab

Discussion

Home ‣ Electrical Engineering ‣ Circuit Theorems in AC Analysis Comments
  • Question

  • Determine VTH for the circuit external to RL in the given figure.

    Determine VTH for the circuit external to RL in the given figure. 135?63.4° V 13.5?63.4° V 13.5?0° V


  • Options
  • A. 135∠63.4° V
  • B. 13.5∠63.4° V
  • C. 13.5∠0° V
  • D. 135∠0° V

  • Correct Answer
  • 13.5∠63.4° V 

    • Circuit Theorems in AC Analysis problems

    Search Results

    • 1. Referring to the given circuit, find ZTH for the part of the circuit that is external to RL.


    • Options
    • A. 129∠21.4° Ω
    • B. 43.7∠68.6° Ω
    • C. 43.7∠21.4° Ω
    • D. 12.9∠68.6° Ω
      • Discuss
    • 2. The Thevenin equivalent voltage is

    • Options
    • A. equal to the source voltage
    • B. the same as the load voltage
    • C. the open circuit voltage
    • D. none of the above
      • Discuss
    • 3. Referring to the given circuit, how much power, in watts, is delivered to the speaker at the determined frequency if VS = 4.5 VRMS?


    • Options
    • A. 226 mW
    • B. 2.26 mW
    • C. 4.24 mW
    • D. 424 mW
      • Discuss
    • 4. Referring to the given circuit, what is VTH if VS = 12∠0° V?


    • Options
    • A. 4.69∠38.7° V
    • B. 9.38∠38.7° V
    • C. 12∠0° V
    • D. 6∠0° V
      • Discuss
    • 5. Referring to the given circuit, what is ZTH if R1 is changed to 220 Ω?


    • Options
    • A. 225∠12.1° Ω
    • B. 225∠77.9° Ω
    • C. 46∠77.9° Ω
    • D. 46∠12.1° Ω
      • Discuss
    • 6. Referring to the given figure, determine ZTH as seen by RL if R1 is changed to 3.3 kΩ.


    • Options
    • A. 1488∠?70.7° Ω
    • B. 3859 ∠?31.2° Ω
    • C. 5180 ∠?50.5° Ω
    • D. 1828∠?50.2° Ω
      • Discuss
    • 7. Determine the frequency at which the maximum power is transferred from the amplifier to the speaker in the given figure.


    • Options
    • A. 1,027 Hz
    • B. 10,270 Hz
    • C. 6,330 Hz
    • D. 63,330 Hz
      • Discuss
    • 8. Determine VTH if R1 is changed to 3.3 kΩ.


    • Options
    • A. 0.574∠16.7° V
    • B. 4.63∠16.7° V
    • C. 4.63∠39.5° V
    • D. 0.463∠39.5° V
      • Discuss
    • 9. Norton's theorem gives

    • Options
    • A. an equivalent current source in parallel with an equivalent impedance
    • B. an equivalent current source in series with an equivalent impedance
    • C. an equivalent voltage source in parallel with an equivalent impedance
    • D. an equivalent voltage source in series with an equivalent impedance
      • Discuss
    • 10. If two currents are in the same direction at any instant of time in a given branch of a circuit, the net current at that instant

    • Options
    • A. is zero
    • B. is the sum of the two currents
    • C. is the difference between the two currents
    • D. cannot be determined
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.