Question 1

-Given the circuit in Figure 5-4, what is the current through resistor R2?

Accepted Answer

A)  1 A 
B)  0.2 A 
C)  1.2 A 
D)  100 mA 
A)  1 A 
B)  0.2 A 
C)  1.2 A 
D)  100 mA D

Question 2

The total resistance of a series circuit is equal to the average of all the resistance values.

Accepted Answer

A) True 
 B)False  False

Question 3

As you add resistors to a series circuit, total current will decrease.

Accepted Answer

A) True 
 B)False  True

Question 4

A series circuit has the same voltage across every component.

Accepted Answer

A) True 
 B)False

Question 5

Figure 5-12
-Given the circuit in Figure 5-12, the circuit current is:

Accepted Answer

A)  0.022 A 
B)  220 mA 
C)  2.22 mA 
D)  22.2 mA 
A)  0.022 A 
B)  220 mA 
C)  2.22 mA 
D)  22.2 mA

Question 6

Figure 5-12
-Given the circuit in Figure 5-12, the voltage drop across R2 is:

Accepted Answer

A)  22.2 V 
B)  2.22 V 
C)  3.33 V 
D)  4.44 V 
A)  22.2 V 
B)  2.22 V 
C)  3.33 V 
D)  4.44 V

Question 7

The voltage drop across a series resistor is proportional to what other value?

Accepted Answer

A)  Total resistance 
B)  Its own resistance 
C)  Wattage rating 
D)  The amount of time the circuit is on 
A)  Total resistance 
B)  Its own resistance 
C)  Wattage rating 
D)  The amount of time the circuit is on

Question 8

-Given the circuit in Figure , the voltage drop across R1 is 60 V. The drop across R2 is 45 V. What is the resistance value of R2?

Accepted Answer

A)  345 Ω 
B)  225 Ω 
C)  400 Ω 
D)  450 Ω 
A)  345 Ω 
B)  225 Ω 
C)  400 Ω 
D)  450 Ω

Question 9

What is the supply voltage when a 5 kΩ and a 4 kΩ resistor are in series and 6 V is measured across the smaller resistor?

Accepted Answer

A)  13.5 V 
B)  16 V 
C)  6 V 
D)  12 V 
A)  13.5 V 
B)  16 V 
C)  6 V 
D)  12 V

Question 10

-The total resistance in the circuit in Figure  is:

Accepted Answer

A)  90 Ω + 10 Ω 
B)  90 Ω 
C)  90 Ω / 10 Ω 
D)  10 Ω 
A)  90 Ω + 10 Ω 
B)  90 Ω 
C)  90 Ω / 10 Ω 
D)  10 Ω

Question 11

The total resistance of a series circuit is equal to:

Accepted Answer

A)  the average of all the resistance values 
B)  the largest resistance value 
C)  the sum of all the resistance values 
D)  the smallest resistance value 
A)  the average of all the resistance values 
B)  the largest resistance value 
C)  the sum of all the resistance values 
D)  the smallest resistance value

Question 12

-Given the special series circuit, called a voltage divider, in Figure 5-13, the output voltage Vout) is:

Accepted Answer

A)  10 V 
B)  3.75 V 
C)  5.0 V 
D)  2.5 V 
A)  10 V 
B)  3.75 V 
C)  5.0 V 
D)  2.5 V

Question 13

What is the effect on total current if the voltage supplying a circuit is halved, and the circuit resistance stays the same?

Accepted Answer

A)  It doubles 
B)  It remains the same. 
C)  It goes to zero 
D)  It decreases by half. 
A)  It doubles 
B)  It remains the same. 
C)  It goes to zero 
D)  It decreases by half.

Question 14

Figure 5-14
-Given the voltage divider circuit, in Figure 5-14, what is the circuit current?

Accepted Answer

A)  6.0 mA 
B)  10.9 mA 
C)  2.75 mA 
D)  1.09 mA 
A)  6.0 mA 
B)  10.9 mA 
C)  2.75 mA 
D)  1.09 mA

Question 15

Figure 5-14
-Given the voltage divider, in Figure 5-14, the output voltage Vout) is:

Accepted Answer

A)  0.91 V 
B)  2.75 V 
C)  6.0 V 
D)  1.09 V 
A)  0.91 V 
B)  2.75 V 
C)  6.0 V 
D)  1.09 V

Question 16

If the total voltage applied in a series circuit of three resistors is 120 V and the voltage drop across R1 is 20 V and R2 drops 30 V, what is the voltage drop for R3?

Accepted Answer

A)  120 V 
B)  70 V 
C)  40 V 
D)  50 V 
A)  120 V 
B)  70 V 
C)  40 V 
D)  50 V

Question 17

A series circuit has:

Accepted Answer

A)  more than two current paths 
B)  only one current path 
C)  different currents at different points 
D)  two current paths 
A)  more than two current paths 
B)  only one current path 
C)  different currents at different points 
D)  two current paths

Question 18

-Given the voltage divider circuit,. Suppose resistors R1 and R2 are changed to 10 Ω. What is the new output voltage Vout)?

Accepted Answer

A)  2.25 V 
B)  1.0 V 
C)  5.0 V 
D)  3.75 V 
A)  2.25 V 
B)  1.0 V 
C)  5.0 V 
D)  3.75 V

Question 19

-The total resistance in the circuit in Figure is:

Accepted Answer

A)  23,416.2 Ω 
B)  2907 Ω 
C)  709.2 kΩ 
D)  927 Ω 
A)  23,416.2 Ω 
B)  2907 Ω 
C)  709.2 kΩ 
D)  927 Ω

Question 20

Which of the following is a true statement concerning potentiometers?

Accepted Answer

A)  Potentiometers can only be classified as linear 
B)  Potentiometers do not have a schematic symbol. 
C)  Potentiometers can be used as voltage dividers 
D)  Potentiometers have only two terminals. 
A)  Potentiometers can only be classified as linear 
B)  Potentiometers do not have a schematic symbol. 
C)  Potentiometers can be used as voltage dividers 
D)  Potentiometers have only two terminals.

Exam 5: Series Circuits

-Given the circuit in Figure 5-4, what is the current through resistor R2?

The total resistance of a series circuit is equal to the average of all the resistance values.

As you add resistors to a series circuit, total current will decrease.

A series circuit has the same voltage across every component.

Figure 5-12 -Given the circuit in Figure 5-12, the circuit current is:

Figure 5-12 -Given the circuit in Figure 5-12, the voltage drop across R2 is:

The voltage drop across a series resistor is proportional to what other value?

-Given the circuit in Figure , the voltage drop across R1 is 60 V. The drop across R2 is 45 V. What is the resistance value of R2?

What is the supply voltage when a 5 kΩ and a 4 kΩ resistor are in series and 6 V is measured across the smaller resistor?

-The total resistance in the circuit in Figure is:

The total resistance of a series circuit is equal to:

-Given the special series circuit, called a voltage divider, in Figure 5-13, the output voltage Vout) is:

What is the effect on total current if the voltage supplying a circuit is halved, and the circuit resistance stays the same?

Figure 5-14 -Given the voltage divider circuit, in Figure 5-14, what is the circuit current?

Figure 5-14 -Given the voltage divider, in Figure 5-14, the output voltage Vout) is:

If the total voltage applied in a series circuit of three resistors is 120 V and the voltage drop across R1 is 20 V and R2 drops 30 V, what is the voltage drop for R3?

A series circuit has:

-Given the voltage divider circuit,. Suppose resistors R1 and R2 are changed to 10 Ω. What is the new output voltage Vout)?

-The total resistance in the circuit in Figure is:

Which of the following is a true statement concerning potentiometers?

Quantities and Units

Voltage, Current, and Resistance

Ohms Law

Energy and Power

Parallel Circuits

Series-Parallel Circuits

Circuit Theorems and Conversions

Branch, Loop, and Node Analyses

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Inductors

Transformers

Rc Circuits

Rl Circuits

Rlc Circuits and Resonance

Passive Filters

Circuit Theorems in Ac Analysis

Time Response of Reactive Circuits

Three-Phase Systems in Power Applications

Filters