Download Sample Test Final and Solutions

Final Exam (sample)
Name___________________________________
Prepared by Dr. Lijian Xu
PIn final exam, you will be asked to show all the details of your work,
please work as a group, come to my office hours if you have anyquestions.
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Figure 6.1
1) See Figure 6.1. What is the total conductance, GT?
1)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Figure 7.1
2) See Figure 7.1. What is the total resistance RT?
A) 2.4
B) 4.8
2)
C) 6.4
D) 3.2
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Figure 7.5
3) See Figure 7.5. Calculate Vx.
3)
1
Figure 8.5
4) See Figure 8.5. Compute the voltages across the 3
,7
, and 10
resistors.
4)
Figure 8.7
5) See Figure 8.7. Use nodal analysis to solve for voltages V1 and V2 .
5)
Figure 9.6
6) See Figure 9.6. Use the reciprocity theorem to prove that the current I is the same in circuits
(a) and (b).
2
6)
Figure 9.10
7) See Figure 9.10. Calculate the Thevenin voltage and Thevenin resistance circuit for the
network at the terminals ab of the circuit.
7)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Figure 10.3
8) See Figure 10.3. What is the total capacitance CT?
A) 25 µF
B) 212.5 µF
8)
C) 50 µF
D) 12.5 µF
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Figure 10.7
9) See Figure 10.7. Compute the time constant t for this circuit.
3
9)
Figure 10.8
10) See Figure 10.8. Assuming the capacitor is initially discharged, what is the instantaneous
current through the 1 k resistor 0.2 s after throwing the switch to position 1?
4
10)
Answer Key
Testname: UNTITLED1
1)
2)
3)
4)
5)
6)
7)
0.475 siemens
D
1.25 V
+3.84 V, -1.16 V, -11.16 V (polarity referenced from top to bottom)
V1 = -12.9 V, V2 = 1.43 V
Both currents equal 1 A.
VTH = 30V; RTH = 8.67 ohms
8) A
9) 0.11 s
10) 1.35 mA
5