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Circuit Theorems in AC Analysis problems

  • 1. Referring to the given circuit, find ZTH if R is 15 kΩ and RL is 38 kΩ.

    Electrical Engineering Circuit Theorems in AC Analysis: Referring to the given circuit, find ZTH if R is 15 k? and RL

  • Options
  • A. 89.82 ∠?51.3° kΩ
  • B. 19.2 ∠?38.3° kΩ
  • C. 9.38∠?51.3° kΩ
  • D. 180 ∠?38.3° kΩ
    • Discuss
  • 2. In order to get maximum power transfer from a capacitive source, the load must

  • Options
  • A. have a capacitive reactance equal to circuit resistance
  • B. have an impedance that is the complex conjugate of the source impedance
  • C. be as capacitive as it is inductive
  • D. none of the above
    • Discuss
  • 3. For the circuit shown, determine ZTH for the portion of the circuit external to RL.

    Electrical Engineering Circuit Theorems in AC Analysis: For the circuit shown, determine ZTH for the portion of the circuit external to

  • Options
  • A. 66.7 ∠?33.7° kΩ
  • B. 6.67∠?333.7° kΩ
  • C. 14.4 ∠?56.3° kΩ
  • D. 1.44 ∠?33.7° kΩ
    • Discuss
  • 4. Thevenin's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent current source in parallel with an equivalent impedance.

  • Options
  • A. True
  • B. False
    • Discuss
  • 5. The superposition theorem is useful for the analysis of single-source circuits.

  • Options
  • A. True
  • B. False
    • Discuss
  • 6. An equivalent circuit is one that produces the same voltage and current to a given load as the original circuit that it replaces.

  • Options
  • A. True
  • B. False
    • Discuss
  • 7. In order to get maximum power transfer from a capacitive source, the load must have an impedance that is the complex conjugate of the source impedance.

  • Options
  • A. True
  • B. False
    • Discuss
  • 8. One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.

  • Options
  • A. True
  • B. False
    • Discuss
  • 9. A Thevenin ac equivalent circuit always consists of an equivalent ac voltage source and an equivalent capacitance.

  • Options
  • A. True
  • B. False
    • Discuss
  • 10. The superposition theorem is useful for circuit analysis only in ac circuits.

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

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