Circuit Theorems In Ac Analysis MCQs with Explanations

9.38 ∠38.7° V is the correct answer to “Referring to the given circuit, what is V TH if VS = 12 ∠0° V”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

9.38 ∠-51.3° kΩ is the correct answer to “Referring to the given circuit, find Z TH if VS is 180° V.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

13.5∠63.4° V is the correct answer to “Determine V TH when R1 is 180 Ω and XL is 90 Ω.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

The equivalent voltage source and the equivalent series impedance is the correct answer to “The two basic components of a Thevenin equivalent ac circuit are”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

False is the correct answer to “One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

4.69 ∠38.7° V is the correct answer to “For the given circuit, find V TH for the circuit external to RL.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

True is the correct answer to “Like Thevenin's theorem, Norton's theorem provides a method of reducing a more complex circuit to a simpler, more manageable form for analysis.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

False is the correct answer to “The superposition theorem is useful for the analysis of single-source circuits.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

Has no effect on the result is the correct answer to “Referring to the given circuit, L”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

True is the correct answer to “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.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

True is the correct answer to “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.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

13.5 ∠63.4° V is the correct answer to “Determine V TH for the circuit external to RL in the given figure.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

True is the correct answer to “An equivalent circuit is one that produces the same voltage and current to a given load as the original circuit that it replaces.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

False is the correct answer to “A Thevenin ac equivalent circuit always consists of an equivalent ac voltage source and an equivalent capacitance.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

9.38 ∠-51.3° kΩ is the correct answer to “Referring to the given circuit, find Z TH if R is 15 kΩ and RL is 38 kΩ.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

5.74 ∠-16.7° V is the correct answer to “For the circuit given, determine the Thevenin voltage as seen by RL.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

1,027 Hz is the correct answer to “Determine the frequency at which the maximum power is transferred from the amplifier to the speaker in the given figure.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

False is the correct answer to “The superposition theorem is useful for circuit analysis only in ac circuits.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

Have an impedance that is the complex conjugate of the source impedance is the correct answer to “In order to get maximum power transfer from a capacitive source, the load must”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

The sources are considered one at a time with all others replaced by their internal impedance is the correct answer to “In applying the superposition theorem,”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

The short circuit current is the correct answer to “The Norton equivalent current is”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

False is the correct answer to “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.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

False is the correct answer to “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.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

The open circuit voltage is the correct answer to “The Thevenin equivalent voltage is”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

Is the sum of the two currents is the correct answer to “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”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

An equivalent current source in parallel with an equivalent impedance is the correct answer to “Norton's theorem gives”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

46 ∠77.9° Ω is the correct answer to “Referring to the given circuit, what is Z TH if R1 is changed to 220 Ω”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

4.63 ∠39.5° V is the correct answer to “Determine V TH if R1 is changed to 3.3 kΩ.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

1828 ∠-50.2° Ω is the correct answer to “Referring to the given figure, determine Z TH as seen by RL if R1 is changed to 3.3 kΩ.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

1444 ∠-48.5° Ω is the correct answer to “Referring to the given circuit, determine Z TH as seen by RL.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

43.7 ∠68.6° Ω is the correct answer to “Referring to the given circuit, find Z TH for the part of the circuit that is external to RL.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

6.67 ∠-333.7° kΩ is the correct answer to “For the circuit shown, determine Z TH for the portion of the circuit external to RL.”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.

424 mW is the correct answer to “Referring to the given circuit, how much power, in watts, is delivered to the speaker at the determined frequency if VS = 4.5 VRMS”. This question is standard in competitive examination syllabi for Circuit Theorems In Ac Analysis.