Question 1

A loaded voltage divider is a series -parallel circuit.

Accepted Answer

A) True 
 B)False  True

Question 2

- With circuit balanced there is:

Accepted Answer

A) Cannot be determined without detailed analysis. 
B) no current through the load. 
C) no current flow through the total circuit. 
D) maximum current flow through the load. 
A) Cannot be determined without detailed analysis. 
B) no current through the load. 
C) no current flow through the total circuit. 
D) maximum current flow through the load. B

Question 3

-If R3 shorts in Figure 6 -2, VR5 . Figure 6 -2

Accepted Answer

A) decreases 
B) remains the same 
C) increases 
A) decreases 
B) remains the same 
C) increases A

Question 4

-If the current is 1.2 mA in Figure 6 -3, what is the value of PT?

Accepted Answer

A) 57.6 mW 
B) 5.76 mW 
C) 576 mW 
D) 0.576 mW 
A) 57.6 mW 
B) 5.76 mW 
C) 576 mW 
D) 0.576 mW

Question 5

-If R1 = 4.7 kΩ, R2 = 3.3 kΩ, R3 = 1 kΩ and Vs = 50 V in Figure 6 -1, IT equals .

Accepted Answer

A) 12.1 mA 
B) 75.7 mA 
C) 9.15 mA 
D) 8.8 mA 
A) 12.1 mA 
B) 75.7 mA 
C) 9.15 mA 
D) 8.8 mA

Question 6

Power in a series -parallel resistor circuit is dissipated as:

Accepted Answer

A) heat. 
B) resistance change. 
C) current flow. 
D) voltage loss. 
A) heat. 
B) resistance change. 
C) current flow. 
D) voltage loss.

Question 7

-If Vs = 22 V in Figure 6 -3, what is the is the value of VDB?

Accepted Answer

A) -22 V 
B) -11 V 
C) 11 V 
D) 5.5 V 
A) -22 V 
B) -11 V 
C) 11 V 
D) 5.5 V

Question 8

-In Figure 6 -2 if R1 = 10 kΩ, R2 = 4.7 kΩ, R3 = 4.7 kΩ, R4 = 10 kΩ and R5 = 4.7 kΩ, RT = ?

Accepted Answer

A) 6.1 kΩ 
B) 24.7 kΩ 
C) 18.3 kΩ 
D) 0 Ω 
A) 6.1 kΩ 
B) 24.7 kΩ 
C) 18.3 kΩ 
D) 0 Ω

Question 9

-R1 is in series with the series combination R2 and R3 in Figure 6 -1.

Accepted Answer

A) True 
 B)False

Question 10

-If R1 = 10 kΩ, R2 = 15 kΩ and R3 = 50 kΩ in Figure 6 -1, RT equals .

Accepted Answer

A) 11.5 kΩ 
B) 10 kΩ 
C) 9.5 kΩ 
D) 21.5 kΩ 
A) 11.5 kΩ 
B) 10 kΩ 
C) 9.5 kΩ 
D) 21.5 kΩ

Question 11

-If R1 = 4.7 kΩ, R2 = 3.3 kΩ and R3 = 1 kΩ in Figure , the total resistance equals .

Accepted Answer

A) 5700 Ω 
B) 660 Ω 
C) 5467 Ω 
D) 4125 Ω 
A) 5700 Ω 
B) 660 Ω 
C) 5467 Ω 
D) 4125 Ω

Question 12

-If Vs = 20 V, R1 = 10 kΩ, R2 = 50 kΩ and R3 = 15 kΩ in Figure 6 -1, PR2 equals .

Accepted Answer

A) 8.63 mW 
B) 18.6 mW 
C) 2.30 mW 
D) 7.64 mW 
A) 8.63 mW 
B) 18.6 mW 
C) 2.30 mW 
D) 7.64 mW

Question 13

-If all of the resistors in Figure 6 -2 are 4.7 kΩ, what is the value of RT?

Accepted Answer

A) 4.7 kΩ 
B) 9.4 kΩ 
C) 12.5 kΩ 
D) 18.8 kΩ 
A) 4.7 kΩ 
B) 9.4 kΩ 
C) 12.5 kΩ 
D) 18.8 kΩ

Question 14

If four parallel 10 kΩ resistors are connected in series with a single 20 kΩ resistor and one of the parallel resistors opens, how does the voltage across the other parallel resistors change?

Accepted Answer

A) It remains the same. 
B) It decreases. 
C) It increases. 
A) It remains the same. 
B) It decreases. 
C) It increases.

Question 15

-In Figure 6 -1, R2 is connected in .

Accepted Answer

A) series with R1 
B) parallel with R3 
C) parallel with R1 
D) series with R3 
A) series with R1 
B) parallel with R3 
C) parallel with R1 
D) series with R3

Question 16

-If all resistors equal 4.7 kΩ and Vs equals 20 V in Figure 6 -2, what is the value of IR3?

Accepted Answer

A) 12.5 mA 
B) 1.06 mA 
C) 0.53 mA 
D) 11.99 mA 
A) 12.5 mA 
B) 1.06 mA 
C) 0.53 mA 
D) 11.99 mA

Question 17

-If all of the resistors of this circuit are 5 kΩ and VS1 and VS2 are 10 V but opposing polarities, what would be the current flow through R2?

Accepted Answer

A) 1.33 mA 
B) 13.33 mA 
C) 0 A 
D) 2.66 mA 
A) 1.33 mA 
B) 13.33 mA 
C) 0 A 
D) 2.66 mA

Question 18

No problems could occur if a 10 V source and a 20 V source were connected in parallel.

Accepted Answer

A) True 
 B)False

Question 19

In solving series -parallel circuits using Ohm's law, first solve for:

Accepted Answer

A) the parallel current. 
B) the series resistance. 
C) the series current. 
D) the parallel resistance. 
A) the parallel current. 
B) the series resistance. 
C) the series current. 
D) the parallel resistance.

Question 20

-If Vs = 25 V, R1 = 10 kΩ, R2 = 15 kΩ and R3 = 50 kΩ in Figure 6 -1, IT equals .

Accepted Answer

A) 1.58 mA 
B) 1.16 mA 
C) 2.5 mA 
D) 2.17 mA 
A) 1.58 mA 
B) 1.16 mA 
C) 2.5 mA 
D) 2.17 mA

A loaded voltage divider is a series -parallel circuit.

- With circuit balanced there is:

-If R3 shorts in Figure 6 -2, VR5 . Figure 6 -2

-If the current is 1.2 mA in Figure 6 -3, what is the value of PT?

-If R1 = 4.7 kΩ, R2 = 3.3 kΩ, R3 = 1 kΩ and Vs = 50 V in Figure 6 -1, IT equals .

Power in a series -parallel resistor circuit is dissipated as:

-If Vs = 22 V in Figure 6 -3, what is the is the value of VDB?

-In Figure 6 -2 if R1 = 10 kΩ, R2 = 4.7 kΩ, R3 = 4.7 kΩ, R4 = 10 kΩ and R5 = 4.7 kΩ, RT = ?

-R1 is in series with the series combination R2 and R3 in Figure 6 -1.

-If R1 = 10 kΩ, R2 = 15 kΩ and R3 = 50 kΩ in Figure 6 -1, RT equals .

-If R1 = 4.7 kΩ, R2 = 3.3 kΩ and R3 = 1 kΩ in Figure , the total resistance equals .

-If Vs = 20 V, R1 = 10 kΩ, R2 = 50 kΩ and R3 = 15 kΩ in Figure 6 -1, PR2 equals .

-If all of the resistors in Figure 6 -2 are 4.7 kΩ, what is the value of RT?

If four parallel 10 kΩ resistors are connected in series with a single 20 kΩ resistor and one of the parallel resistors opens, how does the voltage across the other parallel resistors change?

-In Figure 6 -1, R2 is connected in .

-If all resistors equal 4.7 kΩ and Vs equals 20 V in Figure 6 -2, what is the value of IR3?

-If all of the resistors of this circuit are 5 kΩ and VS1 and VS2 are 10 V but opposing polarities, what would be the current flow through R2?

No problems could occur if a 10 V source and a 20 V source were connected in parallel.

In solving series -parallel circuits using Ohm's law, first solve for:

-If Vs = 25 V, R1 = 10 kΩ, R2 = 15 kΩ and R3 = 50 kΩ in Figure 6 -1, IT equals .

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

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 6: Series-Parallel Circuits

A loaded voltage divider is a series -parallel circuit.

- With circuit balanced there is:

-If R3 shorts in Figure 6 -2, VR5 . Figure 6 -2

-If the current is 1.2 mA in Figure 6 -3, what is the value of PT?

-If R1 = 4.7 kΩ, R2 = 3.3 kΩ, R3 = 1 kΩ and Vs = 50 V in Figure 6 -1, IT equals .

Power in a series -parallel resistor circuit is dissipated as:

-If Vs = 22 V in Figure 6 -3, what is the is the value of VDB?

-In Figure 6 -2 if R1 = 10 kΩ, R2 = 4.7 kΩ, R3 = 4.7 kΩ, R4 = 10 kΩ and R5 = 4.7 kΩ, RT = ?

-R1 is in series with the series combination R2 and R3 in Figure 6 -1.

-If R1 = 10 kΩ, R2 = 15 kΩ and R3 = 50 kΩ in Figure 6 -1, RT equals .

-If R1 = 4.7 kΩ, R2 = 3.3 kΩ and R3 = 1 kΩ in Figure , the total resistance equals .

-If Vs = 20 V, R1 = 10 kΩ, R2 = 50 kΩ and R3 = 15 kΩ in Figure 6 -1, PR2 equals .

-If all of the resistors in Figure 6 -2 are 4.7 kΩ, what is the value of RT?

If four parallel 10 kΩ resistors are connected in series with a single 20 kΩ resistor and one of the parallel resistors opens, how does the voltage across the other parallel resistors change?

-In Figure 6 -1, R2 is connected in .

-If all resistors equal 4.7 kΩ and Vs equals 20 V in Figure 6 -2, what is the value of IR3?

-If all of the resistors of this circuit are 5 kΩ and VS1 and VS2 are 10 V but opposing polarities, what would be the current flow through R2?

No problems could occur if a 10 V source and a 20 V source were connected in parallel.

In solving series -parallel circuits using Ohm's law, first solve for:

-If Vs = 25 V, R1 = 10 kΩ, R2 = 15 kΩ and R3 = 50 kΩ in Figure 6 -1, IT equals .

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

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