Practice Test: Question Set - 03
1. For the given circuit, find VTH for the circuit external to RL.
- (A) 4.69 ∠51.3°
V
- (B) 4.69 ∠38.7°
V
- (C) 469 ∠38.7°
mV
- (D) 6 ∠0°
V
2. The superposition theorem is useful for the analysis of single-source circuits.
- (A) True
- (B) False
3. For the circuit shown, determine ZTH for the portion of the circuit external to RL.
- (A) 66.7 ∠-33.7°
kΩ
- (B) 6.67 ∠-333.7° kΩ
- (C) 14.4 ∠-56.3°
kΩ
- (D) 1.44 ∠-33.7°
kΩ
4. 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
5. Referring to the given figure, determine ZTH as seen by RL if R1 is changed to 3.3 kΩ.
- (A) 1488 ∠-70.7° Ω
- (B) 3859 ∠-31.2° Ω
- (C) 5180 ∠-50.5° Ω
- (D) 1828 ∠-50.2° Ω
6. Referring to the given circuit, find ZTH if VS is 18∠0° V.
- (A) 9.82 ∠-51.3°
kΩ
- (B) 9.38 ∠-51.3°
kΩ
- (C) 180 ∠-38.3°
kΩ
- (D) 19.2 ∠-38.3°
kΩ
7. The superposition theorem is useful for circuit analysis only in ac circuits.
- (A) True
- (B) False
8. 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
9. 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
10. Referring to the given circuit, find ZTH for the part of the circuit that is external to RL.
- (A) 129 ∠21.4° Ω
- (B) 43.7 ∠68.6° Ω
- (C) 43.7 ∠21.4° Ω
- (D) 12.9 ∠68.6° Ω
0 blogger:
Post a Comment