Question 1

A parallel circuit can be easily identified because only one end of each component is connected to each other.

Accepted Answer

A) True 
 B)False

Question 2

If IR1 = 75 mA and IR2 = 12.7 mA in a two branch parallel circuit, IT = 85.7 mA.

Accepted Answer

A) True 
 B)False

Question 3

If three 4.7 kΩ resistors are connected in parallel across a 12 V source, what is the value of PT?

Accepted Answer

A) 91.9 mW 
B) 1.41 W 
C) 141 mW 
D) 14.1 mW 
A) 91.9 mW 
B) 1.41 W 
C) 141 mW 
D) 14.1 mW

Question 4

The total power dissipated by a parallel circuit can be found by adding the individual powers.

Accepted Answer

A) True 
 B)False

Question 5

If three 75 W lamps are connected in parallel across a 125 V source, IT equals .

Accepted Answer

A) 18 mA 
B) 18 A 
C) 1.8 A 
D) 180 mA 
A) 18 mA 
B) 18 A 
C) 1.8 A 
D) 180 mA

Question 6

Measurement of total current is accomplished with the ammeter in series with the source voltage.

Accepted Answer

A) True 
 B)False

Question 7

A thermal image is also known as a(n)

Accepted Answer

A) radiometric image 
B) hot shot 
C) infrared projection 
D) all of the above 
A) radiometric image 
B) hot shot 
C) infrared projection 
D) all of the above

Question 8

If twelve 1.5 MΩ resistors are connected in parallel across 50 V, RT equals .

Accepted Answer

A) 1.5 M Ω 
B) 1 MΩ 
C) 0.125 MΩ 
D) 1.25 MΩ 
A) 1.5 M Ω 
B) 1 MΩ 
C) 0.125 MΩ 
D) 1.25 MΩ

Question 9

The total resistance of three parallel resistors equals the sum of the individual resistor values.

Accepted Answer

A) True 
 B)False

Question 10

If a 2.2 kΩ resistor, 10 kΩ resistor and 1.2 kΩ resistor are connected in parallel, the total resistance equals .

Accepted Answer

A) 1.2 kΩ 
B) 2.27 kΩ 
C) 721 Ω 
D) 13.4 kΩ 
A) 1.2 kΩ 
B) 2.27 kΩ 
C) 721 Ω 
D) 13.4 kΩ

Question 11

The current through any branch of a parallel circuit .

Accepted Answer

A) is directly proportional to the branch resistance 
B) depends only on the circuit voltage 
C) is inversely proportional to the branch resistance 
D) depends on the power rating of the resistor 
A) is directly proportional to the branch resistance 
B) depends only on the circuit voltage 
C) is inversely proportional to the branch resistance 
D) depends on the power rating of the resistor

Question 12

Accurate troubleshooting of a parallel circuit cannot be performed with a voltmeter.

Accepted Answer

A) True 
 B)False

Question 13

-The fuse in this circuit is rated at 100 mA. Would the fuse blow if an additional 1 kΩ were placed in parallel with R5?

Accepted Answer

A) yes 
B) no 
C) Fuse has nothing to do with this part of the circuit. 
A) yes 
B) no 
C) Fuse has nothing to do with this part of the circuit.

Question 14

In a parallel circuit, the largest amount of power is dissipated by:

Accepted Answer

A) the smallest resistor. 
B) the first resistor. 
C) the largest resistor. 
D) any resistor, since the voltage is the same across each of the branch circuits. 
A) the smallest resistor. 
B) the first resistor. 
C) the largest resistor. 
D) any resistor, since the voltage is the same across each of the branch circuits.

Question 15

A formula that applies to a two -branch parallel circuit is .

Accepted Answer

A) RT = R1 + R2 
B) IT = IR1 + IR2 
C) RT = V1 ÷ R2 
D) VT = VR1 + VR2 
A) RT = R1 + R2 
B) IT = IR1 + IR2 
C) RT = V1 ÷ R2 
D) VT = VR1 + VR2

Question 16

If you want to measure a load voltage with a DVM, connect the meter .

Accepted Answer

A) in parallel with the load 
B) across the source 
C) in series with the source 
D) in series with the load 
A) in parallel with the load 
B) across the source 
C) in series with the source 
D) in series with the load

Question 17

If a 330 Ω resistor, 270 Ω resistor and 68 Ω resistor are connected in parallel, what is the approximate value for RT?

Accepted Answer

A) 668 Ω 
B) 68 Ω 
C) 47 Ω 
D) 22 Ω 
A) 668 Ω 
B) 68 Ω 
C) 47 Ω 
D) 22 Ω

Question 18

If three 22 kΩ resistors are connected in parallel across a 10 V source, PT equals .

Accepted Answer

A) 22.6 m W 
B) 18.1 m W 
C) 4.5 m W 
D) 13.6 m W 
A) 22.6 m W 
B) 18.1 m W 
C) 4.5 m W 
D) 13.6 m W

Question 19

An open in one branch of a parallel circuit results in:

Accepted Answer

A) decreased power consumption. 
B) increased circuit resistance. 
C) decreased or reduced current flow. 
D) all of these. 
A) decreased power consumption. 
B) increased circuit resistance. 
C) decreased or reduced current flow. 
D) all of these.

Question 20

-What is the power dissipation of R3?

Accepted Answer

A) 11.4 mW 
B) 568 mW 
C) 25 mW 
D) 284 mW 
A) 11.4 mW 
B) 568 mW 
C) 25 mW 
D) 284 mW

A parallel circuit can be easily identified because only one end of each component is connected to each other.

If IR1 = 75 mA and IR2 = 12.7 mA in a two branch parallel circuit, IT = 85.7 mA.

If three 4.7 kΩ resistors are connected in parallel across a 12 V source, what is the value of PT?

The total power dissipated by a parallel circuit can be found by adding the individual powers.

If three 75 W lamps are connected in parallel across a 125 V source, IT equals .

Measurement of total current is accomplished with the ammeter in series with the source voltage.

A thermal image is also known as a(n)

If twelve 1.5 MΩ resistors are connected in parallel across 50 V, RT equals .

The total resistance of three parallel resistors equals the sum of the individual resistor values.

If a 2.2 kΩ resistor, 10 kΩ resistor and 1.2 kΩ resistor are connected in parallel, the total resistance equals .

The current through any branch of a parallel circuit .

Accurate troubleshooting of a parallel circuit cannot be performed with a voltmeter.

-The fuse in this circuit is rated at 100 mA. Would the fuse blow if an additional 1 kΩ were placed in parallel with R5?

In a parallel circuit, the largest amount of power is dissipated by:

A formula that applies to a two -branch parallel circuit is .

If you want to measure a load voltage with a DVM, connect the meter .

If a 330 Ω resistor, 270 Ω resistor and 68 Ω resistor are connected in parallel, what is the approximate value for RT?

If three 22 kΩ resistors are connected in parallel across a 10 V source, PT equals .

An open in one branch of a parallel circuit results in:

-What is the power dissipation of R3?

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rccircuits

Inductors

Rlcircuits

Rlccircuits and Resonance

Transformers

Time Response of Reactive Circuits

Filters

Exam 5: Parallel Circuits

A parallel circuit can be easily identified because only one end of each component is connected to each other.

If IR1 = 75 mA and IR2 = 12.7 mA in a two branch parallel circuit, IT = 85.7 mA.

If three 4.7 kΩ resistors are connected in parallel across a 12 V source, what is the value of PT?

The total power dissipated by a parallel circuit can be found by adding the individual powers.

If three 75 W lamps are connected in parallel across a 125 V source, IT equals .

Measurement of total current is accomplished with the ammeter in series with the source voltage.

A thermal image is also known as a(n)

If twelve 1.5 MΩ resistors are connected in parallel across 50 V, RT equals .

The total resistance of three parallel resistors equals the sum of the individual resistor values.

If a 2.2 kΩ resistor, 10 kΩ resistor and 1.2 kΩ resistor are connected in parallel, the total resistance equals .

The current through any branch of a parallel circuit .

Accurate troubleshooting of a parallel circuit cannot be performed with a voltmeter.

-The fuse in this circuit is rated at 100 mA. Would the fuse blow if an additional 1 kΩ were placed in parallel with R5?

In a parallel circuit, the largest amount of power is dissipated by:

A formula that applies to a two -branch parallel circuit is .

If you want to measure a load voltage with a DVM, connect the meter .

If a 330 Ω resistor, 270 Ω resistor and 68 Ω resistor are connected in parallel, what is the approximate value for RT?

If three 22 kΩ resistors are connected in parallel across a 10 V source, PT equals .

An open in one branch of a parallel circuit results in:

-What is the power dissipation of R3?

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rccircuits

Inductors

Rlcircuits

Rlccircuits and Resonance

Transformers

Time Response of Reactive Circuits

Filters