Download 150QUIZ5ANSWERS Assignment Page

CONST 150 QUIZ 5 CHAPTERS 5,7
NAME:
1. A parallel circuit contains two or more loads but only one path for current to flow from
the source voltage through the loads and back to the source.
Ans: False
Difficulty: Easy
Page: 100
2. The total resistance in a parallel circuit is equal to the sum of the individual resistances
in the parallel circuit.
Ans: False
Difficulty: Easy
Page: 100
3. Voltage is a potential difference between two points.
Ans: True
Difficulty: Easy
Page: 102
4. In a series circuit, the resistor with the most resistance dominates the circuit.
Ans: True
Difficulty: Medium
Page: 105
Multiple Choice
5. In a parallel circuit, the total current is equal to
A. the voltage across one load divided by that resistance
B. any one of the branch currents
C. the sum of the individual branch currents
D. a branch voltage times that branch resistance
Ans: C
Difficulty: Medium
Page: 109
6. What is the equivalent resistance of two 200-Ω parallel resistors?
A. 50 Ω
B. 75 Ω
C. 100 Ω
D. 150 Ω
Ans: C
Difficulty: Medium
Page: 112
7. What is a circuit called that contains two or more loads but only one path for current to
flow?
A. series
B. parallel
C. series-parallel
D. ac
Ans: A
Difficulty: Easy
Page: 100
8. The voltage, or potential energy difference, across a resistor is referred to as
A. a voltage rise
B. a voltage drop
C. a source voltage
D. kinetic energy
Ans: B
Difficulty: Easy
Page: 101
TB 5 | 1
True/False
9. The total resistance of a parallel circuit is always more than the highest branch
resistance.
Ans: False
Difficulty: Medium
Page: 110
10. Conductance is the exact opposite of resistance.
Ans: True
Difficulty: Easy
Page: 115
Multiple Choice
11. What is the total current in the circuit shown in Fig. 5-30?
A. 0.6 A
B. 0.2 A
C. 0.8 A
D. 0 A
Ans: A
Difficulty: Medium
Page: 119
12. What is the voltage drop across R1 in the circuit shown in Fig. 5-30?
A. 100 V
B. 40 V
C. 140 V
D. 60 V
Ans: D
Difficulty: Medium
Page: 119
13. What is the current through R3 in the circuit shown in Fig. 5-30?
A. 0.6 A
B. 0.2 A
C. 0.8 A
D. 0 A
Ans: B
Difficulty: Medium
Page: 119
14. Wherever an electric current exists, a magnetic field cannot exist.
Ans: False
Difficulty: Easy
Page: 173
15. Unlike magnetic poles create a force of attraction.
Ans: True
Difficulty: Easy
Page: 174
16. Two parallel, current-carrying conductors repel each other if the currents in the
conductors are not in the same direction.
Ans: True
Difficulty: Medium
Page: 177
17. Forming a coil out of an insulator creates an electromagnet.
TB 5 | 2
Ans: False
Difficulty: Medium
Page: 178
18. A magnet attracts metals like copper, brass, aluminum, or silver.
Ans: False
Difficulty: Easy
Page: 179
19. When a magnetic material is put in a magnetic field of a magnet, it becomes
magnetized.
Ans: True
Difficulty: Easy
Page: 180
20. When the material in the center of a coil is aluminum or copper, a temporary magnet
is made.
Ans: False
Difficulty: Medium
Page: 181
TB 5 | 3