Download Sample Test 2 and Solutions

EET 111 Sample Test 2
(Prepared by Professor Lijian Xu)
Exam
Name___________________________________
MULTIPLE CHOICE.
Choose the one alternative that best completes the statement or answers the question.
Figure 6.1
1) See Figure 6.1. Use Kirchhoff's current law to compute I 2, given IT = 100 mA. 1) _______
A) 53.7 mA
B) 26.3 mA
C) 100 mA
D) 21.1 mA
Figure 6.2
2) See Figure 6.2. What is the value of I2? Use Kirchhoff's current law to determine the answer.
A) 9 A B) 11 A
C) 10 A
D) 7 A
Figure 6.4
3) See Figure 6.4. Which two resistors are in parallel?
A) 10 Ω and 56 Ω
B) 10 Ω and 47 Ω
C) 10 Ω and 33 Ω
D) None are in parallel.
3) _______
2) _______
Figure 7.1
4) See Figure 7.1. What is the total resistance RT?
A) 4.8 Ω
B) 6.4 Ω C) 2.4 Ω
4) _______
D) 3.2 Ω
Figure 7.2
5) See Figure 7.2. What is VOUT if the wiper is at the midpoint of the potentiometer and RL = 100
A) 6 V B) 3 V C) 5 V D) 4 V
Figure 7.5
6) See Figure 7.5. What is the value of RT?
6) _______
A) 100 Ω
D) 145 Ω
B) 120 Ω
C) 110 Ω
Figure 7.6
5) _______
7) See Figure 7.6. What is the current I2?
7) _______
A) +0.67 A
D) +1.5 A
B) -1.5 A
C) -0.67 A
Figure 8.7
8) See Figure 8.7, transform the 2 amp current source in parallel with the 6 ohm resistor to a voltage source and a resistor.
8) _______
A) 6 volt source in series with a 12 ohm resistor
B) 12 volt source in series with a 6 ohm resistor
C) 12 volt source in parallel with a 6 ohm resistor
D) 6 volt source in parallel with a 12 ohm resistor
SHORT ANSWER.
Write the word or phrase that best completes each statement or answers the question.
Figure 6.7
9) See Figure 6.7. Calculate the maximum current IL that can be drawn without blowing the fuse.
_____________
Figure 7.7
9)
10) See Figure 7.7. Determine the current I.
10)
_____________
1) D
2) B
3) B
4) D
5) D
6) A
7) B
8) B
9) 1.5 A
10) 2.0 A