Practice Test: Question Set - 02
1. For the circuit given, determine the Thevenin voltage as seen by RL.
- (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 VTH 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
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 ZTH if R is 15 kΩ and RL is 38 kΩ.
- (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 VTH if R1 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