# Practice Test: Question Set - 02

**1. For the circuit given, determine the Thevenin voltage as seen by**

*R*._{L}- (A) 0.574
∠16.7° V

- (B) 5.74 ∠16.7°
V

- (C) 0.574 ∠-16.7°
V

- (D) 5.74 ∠-16.7°
V

**2. 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.**

- (A) True

- (B) False

**3. 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

**4. Determine**

*V*_{TH}when*R*_{1}is 180 Ω and*X*is 90 Ω._{L}- (A) 135∠63.4°
V

- (B) 13.5∠63.4°
V

- (C) 12.2∠0°
V

- (D) 122∠0°
V

**5. An equivalent circuit is one that produces the same voltage and current to a given load as the original circuit that it replaces.**

- (A) True

- (B) False

**6. Referring to the given circuit, find**

*Z*_{TH}if*R*is 15 kΩ and*R*is 38 kΩ._{L}- (A) 89.82 ∠-51.3°
kΩ

- (B) 19.2 ∠-38.3°
kΩ

- (C) 9.38 ∠-51.3°
kΩ

- (D) 180 ∠-38.3°
kΩ

**7. 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

**8. 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

**9. 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

**10. Determine**

*V*_{TH}if*R*_{1}is changed to 3.3 kΩ.- (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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