Name: Class:
Unit 7 Parallel Circuits
Date:
Delmars Standard Textbook of Electricity 6th Edition Herman
Full download at:
Solution Manual:
https://testbankpack.com/p/solution-manual-for-delmars-standard-textbook-of-electricity-6thedition-by-herman-isbn-1285852702-9781285852706/
Test bank:
https://testbankpack.com/p/test-bank-for-delmars-standard-textbook-of-electricity-6th-edition-byherman-isbn-1285852702-9781285852706/
1. The amount of current flowing through each resistor is directly proportional to its resistance. a True
b. False
ANSWER: False
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas
2. Circuits that have more than one path for current flow are circuits. a. parallel
b. series
c. combination
ANSWER: a
POINTS: 1
REFERENCES: 7-1 Parallel Circuit
Values
3. In a parallel circuit, the total current flow is equal to the of the currents through all the branches. a. difference
b. average
c sum
d. quotient
ANSWER: c
POINTS: 1
REFERENCES: 7-1 Parallel Circuit Values
Name:
Unit 7 Parallel Circuits
4. In a parallel circuit, the total resistance is value resistor. a. larger than the lowest
b. less than the lowest
c equal to the largest
d. equal to the lowest
ANSWER: b
POINTS: 1
REFERENCES: 7-1 Parallel Circuit
Values
Unit 7 Parallel Circuits
5. The term “load” refers to the amount of in a circuit branch.
a. current
b. resistance
c. voltage
d. wattage
ANSWER: a
POINTS: 1
REFERENCES: 7-1 Parallel Circuit Values
6. An increase in , not resistance, results in an increase of load. a power
b. current
c. voltage
d. wattage
ANSWER: b
POINTS: 1
REFERENCES: 7-1 Parallel Circuit Values
7. Imagine a water system with a holding tank, pump, and return lines What would happen to the resistance to flow if a return path is added to the system?
a. It increases b. It lessens
c. It stays the same
ANSWER: b
POINTS: 1
REFERENCES: 7-1 Parallel Circuit Values
8. A method for finding total resistance of parallel resistors is
a. product over sum
.
b. reciprocal formula
c. resistors of equal value d. all of the above
ANSWER: d
Name: Class: Date:
Unit 7 Parallel Circuits
POINTS: 1
REFERENCES: 7-2 Parallel Resistance
Formulas
Unit 7 Parallel Circuits
9. A parallel circuit is composed of two 60 Ω resistors. What is the total resistance?
a. 1 Ω
b. 3600 Ω
c 120 Ω
d. 30 Ω
ANSWER: d
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas
10. A two-branch parallel circuit has a 30 Ω and a 15 Ω resistor. What is the total resistance?
a 2 Ω
b. 10 Ω
c. 45 Ω
d. 15 Ω
ANSWER: b
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas
11 A three branch parallel circuit has resistors of 27 Ω, 56 Ω, and 15 Ω What is the total resistance?
a 9.64 Ω
b. 98 Ω
c 18.22 Ω
d. 8.23 Ω
ANSWER: d
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas
12. A three-branch parallel circuit has a total resistance of 385.83 Ω. Two of the resistors are 680 Ω and 1500 Ω. What is the value of the third resistor?
a 2180 Ω
b. 2200 Ω
c. 467.89 Ω
d. 246.16 Ω
ANSWER: b
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas
Name: Class: Date:
Unit 7 Parallel Circuits
13. A parallel circuit composed of a 150 Ω and a 270 Ω resistor has a voltage of 120 V. What is the current in the 150 Ω resistor?
a. 0.29 A
b. 0.8 A
c. 1 A
d. 0.44 A
ANSWER: b
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas
14. A parallel circuit composed of a 10 Ω and a 22 Ω resistor. It has a voltage of 60 V. What is the current in the 10 Ω resistor?
a 6 A
b. 5 A
c 2.73 A
d. 1.88 A
ANSWER: a
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas
15 Parallel circuits are also referred to as
a. current dividers
.
b. current multipliers c
voltage dividers
d. voltage multipliers
ANSWER: a
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas
16 Most devices such as light receptacles in homes and office buildings are connected in circuits.
ANSWER: parallel
POINTS: 1
REFERENCES: Preview
17. The voltage drop across any branch of a parallel circuit is the same as voltage.
ANSWER: applied
POINTS: 1
Unit 7 Parallel Circuits
REFERENCES: 7-1 Parallel Circuit Values
Name: Class: Date:
Unit 7 Parallel Circuits
18. In a parallel circuit, the voltage across each branch must be .
ANSWER: equal
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas
19. To calculate current flow through any branch of a circuit by substituting the values of IX and RX for the branch values when total circuit current and the resistance are known, use the formula.
ANSWER: current divider
POINTS: 1
REFERENCES: 7-2 Parallel Resistance Formulas