Circuit Theorems In Ac Analysis MCQ Questions & Answers

1.
Referring to the given circuit, what is V_TH if VS = 12 ∠0° V?

A. 4.69 ∠38.7° V

B. 9.38 ∠38.7° V

C. 12 ∠0° V

D. 6 ∠0° V

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2.
Referring to the given circuit, find Z_TH if VS is 180° V.

A. 9.82 ∠-51.3° kΩ

B. 9.38 ∠-51.3° kΩ

C. 180 ∠-38.3° kΩ

D. 19.2 ∠-38.3° kΩ

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3.
Determine V_TH when R1 is 180 Ω and XL is 90 Ω.

A. 135∠63.4° V

B. 13.5∠63.4° V

C. 12.2∠0° V

D. 122∠0° V

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4.
The two basic components of a Thevenin equivalent ac circuit are

A. The equivalent voltage source and the equivalent series impedance

B. The equivalent voltage source and the equivalent series resistance

C. The equivalent voltage source and the equivalent parallel impedance

D. The equivalent voltage source and the equivalent parallel resistance

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5.
One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.

A. True

B. False

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6.
For the given circuit, find V_TH for the circuit external to RL.

A. 4.69 ∠51.3° V

B. 4.69 ∠38.7° V

C. 469 ∠38.7° mV

D. 6 ∠0° V

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7.
Like Thevenin's theorem, Norton's theorem provides a method of reducing a more complex circuit to a simpler, more manageable form for analysis.

A. True

B. False

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8.
The superposition theorem is useful for the analysis of single-source circuits.

A. True

B. False

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9.
Referring to the given circuit, L

A. Must be in parallel with RL

B. Must be placed in parallel with VS

C. Must have a reactance equal to XC

D. Has no effect on the result

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10.
In an ac circuit, power to the load peaks at the frequency at which the load impedance is the complex conjugate of the output impedance.

A. True

B. False

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Circuit Theorems In Ac Analysis MCQ Questions & Answers | Electrical Engineering

1. Referring to the given circuit, what is VTH if VS = 12 ∠0° V?

Answer & Solution

2. Referring to the given circuit, find ZTH if VS is 180° V.

Answer & Solution

3. Determine VTH when R1 is 180 Ω and XL is 90 Ω.

Answer & Solution

4. The two basic components of a Thevenin equivalent ac circuit are

Answer & Solution

5. One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.

Answer & Solution

6. For the given circuit, find VTH for the circuit external to RL.

Answer & Solution

7. Like Thevenin's theorem, Norton's theorem provides a method of reducing a more complex circuit to a simpler, more manageable form for analysis.

Answer & Solution

8. The superposition theorem is useful for the analysis of single-source circuits.

Answer & Solution

9. Referring to the given circuit, L

Answer & Solution

10. In an ac circuit, power to the load peaks at the frequency at which the load impedance is the complex conjugate of the output impedance.

Answer & Solution

1.
Referring to the given circuit, what is V_TH if VS = 12 ∠0° V?

2.
Referring to the given circuit, find Z_TH if VS is 180° V.

3.
Determine V_TH when R1 is 180 Ω and XL is 90 Ω.

4.
The two basic components of a Thevenin equivalent ac circuit are

5.
One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.

6.
For the given circuit, find V_TH for the circuit external to RL.

7.
Like Thevenin's theorem, Norton's theorem provides a method of reducing a more complex circuit to a simpler, more manageable form for analysis.

8.
The superposition theorem is useful for the analysis of single-source circuits.

9.
Referring to the given circuit, L

10.
In an ac circuit, power to the load peaks at the frequency at which the load impedance is the complex conjugate of the output impedance.