Circuit Theorems in AC Analysis - General Questions (2)

Directions to Solve

Circuit Theorems in AC Analysis - General Questions

In order to get maximum power transfer from a capacitive source, the load must

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

Answer: Option B

Explanation:

No answer description available for this question.

10.

Referring to the given circuit, find Z_TH for the part of the circuit that is external to R_L.

A.	129∠21.4° Ω
B.	43.7∠68.6° Ω
C.	43.7∠21.4° Ω
D.	12.9∠68.6° Ω

Answer: Option B

Explanation:

No answer description available for this question.

11.

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

Answer: Option D

Explanation:

No answer description available for this question.

12.

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

Answer: Option C

Explanation:

No answer description available for this question.

13.

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

Answer: Option B

Explanation:

No answer description available for this question.

14.

In applying the superposition theorem,

A.	the sources are considered one at a time with all others replaced by their internal impedance
B.	all sources are considered independently
C.	all sources are considered simultaneously
D.	the sources are considered one at a time with all others replaced by their internal resistance

Answer: Option A

Explanation:

No answer description available for this question.

15.

Referring to the given circuit, find Z_TH if V_S 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

Answer: Option B

Explanation:

No answer description available for this question.

16.

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

Answer: Option A

Explanation:

No answer description available for this question.

Circuit Theorems in AC Analysis - General Questions (2)

Circuit Theorems in AC Analysis - General Questions

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