Circuit Theorems In Ac Analysis MCQ Questions & Answers

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Learn Circuit Theorems In Ac Analysis MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Circuit Theorems In Ac Analysis MCQ question is the important chapter for a Electrical Engineering and GATE students. Page-3 section-1

The Norton equivalent current is

A) The current through the load B) The open-current from the source C) The short circuit current D) None of the above

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Norton's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent voltage source in series with an equivalent impedance.

A) True B) False

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Answer & Solution

Answer: Option B

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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.

A) True B) False

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Answer & Solution

Answer: Option B

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The Thevenin equivalent voltage is

A) Equal to the source voltage B) The same as the load voltage C) The open circuit voltage D) None of the above

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Answer & Solution

Answer: Option C

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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

A) Is zero B) Is the sum of the two currents C) Is the difference between the two currents D) Cannot be determined

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Answer & Solution

Answer: Option B

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Norton's theorem gives

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

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Answer & Solution

Answer: Option A

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Referring to the given circuit, what is Z_TH if R1 is changed to 220 Ω?
Circuit Theorems In Ac Analysis mcq question image

A) 225 ∠12.1° Ω B) 225 ∠77.9° Ω C) 46 ∠77.9° Ω D) 46 ∠12.1° Ω

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Answer & Solution

Answer: Option C

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Determine V_TH if R1 is changed to 3.3 kΩ.
Circuit Theorems In Ac Analysis mcq question image

A) 0.574 ∠16.7° V B) 4.63 ∠16.7° V C) 4.63 ∠39.5° V D) 0.463 ∠39.5° V

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Answer & Solution

Answer: Option C

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Referring to the given figure, determine Z_TH as seen by RL if R1 is changed to 3.3 kΩ.
Circuit Theorems In Ac Analysis mcq question image

A) 1488 ∠-70.7° Ω B) 3859 ∠-31.2° Ω C) 5180 ∠-50.5° Ω D) 1828 ∠-50.2° Ω

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Answer & Solution

Answer: Option D

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Referring to the given circuit, determine Z_TH as seen by RL.
Circuit Theorems In Ac Analysis mcq question image

A) 1444 ∠-48.5° Ω B) 4176 ∠-73.3° Ω C) 956 ∠-48.5° Ω D) 1444 ∠-73.3° Ω

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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