Question 1

If 18 V and 6 V sources are connected in series opposing,W hat is the total voltage?

Accepted Answer

A) 18V 
B) 2V 
C) 6V 
D) 12V 
A) 18V 
B) 2V 
C) 6V 
D) 12V D

Question 2

An open in a series circuit results in:

Accepted Answer

A) no current flow. 
B) sourceVoltage appearing across the open. 
C) no power dissipation. 
D) all of these. 
A) no current flow. 
B) sourceVoltage appearing across the open. 
C) no power dissipation. 
D) all of these. D

Question 3

The total power dissipated in a series circuit equals the sum of the individual powers.

Accepted Answer

A) True 
 B)False  True

Question 4

A 22 $\mathrm { k } \Omega$ and 12 $\mathrm { k } \Omega$
 resistor are connected across a  68 V  source. How is the voltage divided?

Accepted Answer

A)   34 V and  34 V 
B)   22 V  and  12 V 
C)   44 V  and  24 V 
D)   68 V  and  68 V 
A)   34 V and  34 V 
B)   22 V  and  12 V 
C)   44 V  and  24 V 
D)   68 V  and  68 V

Question 5

A  500 $k \Omega$  potentiometer is connected across a  5 V  source. If the voltage from the wiper to the lower end of the potentiometer is  1.2 V , what is the resistance of that lower part?

Accepted Answer

A)  120 $\mathrm { k } \Omega$ 
B)   380 $\mathrm { k } \Omega$ 
C)   0 $\Omega$ 
D)  500 $\mathrm { k } \Omega$ 
A)  120 $\mathrm { k } \Omega$ 
B)   380 $\mathrm { k } \Omega$ 
C)   0 $\Omega$ 
D)  500 $\mathrm { k } \Omega$

Question 6

\[\text { Figure } 4 1=10$\mathrm { k } \Omega$, R2=10$\mathrm { k } \Omega$
  and R3=15 $\mathrm { k } \Omega$.

Accepted Answer

A)   0.0256 mW 
B)   0.256 mW 
C)   25.6 mW 
D)   2.56 mW 
A)   0.0256 mW 
B)   0.256 mW 
C)   25.6 mW 
D)   2.56 mW

Question 7

When  50 V  is applied to four series resistors, 100 $\mu \mathrm { A }$ flows. If R1=12 $\mathrm { k } \Omega$, R2=47 $\mathrm { k } \Omega$  and  R3=56 k$\Omega$, what is the value of  R4  ?

Accepted Answer

A)   3.85 $M \Omega$ 
B)   3.85 $k \Omega$ 
C)   385 $\mathrm { k } \Omega$ 
D)   38.5  $\mathrm { k } \Omega$ 
A)   3.85 $M \Omega$ 
B)   3.85 $k \Omega$ 
C)   385 $\mathrm { k } \Omega$ 
D)   38.5  $\mathrm { k } \Omega$

Question 8

Four resistors are connected in series across an 18 V source. Three resistors drop 0 V and one resistor drops 18 V. Whatʹs the trouble?

Accepted Answer

A) The three resistors are open. 
B) One resistor is open. 
C) Two of the resistors are shorted. 
D) There is no trouble; theseVoltages are normal. 
A) The three resistors are open. 
B) One resistor is open. 
C) Two of the resistors are shorted. 
D) There is no trouble; theseVoltages are normal.

Question 9

(a) 
Figure $4 < 2$

-Refer to Figure 4-2a. The resistor between points E and D looks charred.W hat most likely Would cause this?

Accepted Answer

A) short between A and D 
B) open A and the power supply 
C) short between A and B 
D) Any of these could cause this problem. 
A) short between A and D 
B) open A and the power supply 
C) short between A and B 
D) Any of these could cause this problem.

Question 10

If each of the six resistors in a series circuit drops 5 V, the source voltage ________.

Accepted Answer

A) depends on the current 
B) equals 30V 
C) equals 5V 
D) depends on the resistorV
Alues 
A) depends on the current 
B) equals 30V 
C) equals 5V 
D) depends on the resistorV
Alues

Question 11

If  6.8  $\mathrm { k } \Omega$,  1.2  $\mathrm { k } \Omega$ and  5.6  $\mathrm { k } \Omega$
 resistors are wired in series, the total resistance is  13.6  $\mathrm { k } \Omega$

Accepted Answer

A) True 
 B)False

Question 12

If 12 V and -19 V sources are connected so their total voltage is -7 V, they are ________.

Accepted Answer

A) series opposing 
B) series aiding 
C) connected dangerously 
D) in parallel 
A) series opposing 
B) series aiding 
C) connected dangerously 
D) in parallel

Question 13

If a resistor is rated at 1/2W , it can safely dissipate 0.325W .

Accepted Answer

A) True 
 B)False

Question 14

Two resistors are in series across a $12 \mathrm {~V}$ source. If each resistor equals $470 \mathrm { k } \Omega$, what is the voltage across each resistor?

Accepted Answer

A) 9V 
B) 12V 
C) 3V 
D) 6V 
A) 9V 
B) 12V 
C) 3V 
D) 6V

Question 15

\[\text { Figure } 4 T  in Figure  4-1  if  R1=4.7 $\mathrm { k } \Omega$, VR1=10 V,R2=4.7 $\mathrm { k } \Omega$ and R3=4.7 $\mathrm { k } \Omega$

Accepted Answer

A)   1 mA 
B)   6 mA 
C)   4.26 mA 
D)   2.13 mA 
A)   1 mA 
B)   6 mA 
C)   4.26 mA 
D)   2.13 mA

Question 16

If a 10 $\mathrm { k } \Omega$ and 5 $\mathrm { k } \Omega$ resistor are connected in series across a  12V  source, the voltage across the  10 k$\Omega$ resistor is and the voltage across the 5 $\mathrm { k } Q$ resistor is

Accepted Answer

A)   4 V, 8 V 
B)   4 V, 4 V 
C)   8 V, 4 V 
D)   8 V, 8 V 
A)   4 V, 8 V 
B)   4 V, 4 V 
C)   8 V, 4 V 
D)   8 V, 8 V

Question 17

Two 100 $\mathrm { k } \Omega$ resistors are wired in series across a  20V source. How much voltage does each resistor drop?

Accepted Answer

A)  100 $\mathrm { k } \Omega$ 
B)   100 mA 
C)   20 V 
D)   10 V 
A)  100 $\mathrm { k } \Omega$ 
B)   100 mA 
C)   20 V 
D)   10 V

Question 18

$$\text { Figure } 4 < 1$$
-Calculate  VT  in Figure  4-1  if $\mathrm { R } 1 = 4.7 \mathrm { k } \Omega , \mathrm { VR } 1 = 10 \mathrm {~V} , \mathrm { R } _ { 2 } = 4.7 \mathrm { k \Omega }$
and $\mathrm { R } 3 = 4.7 \mathrm { k } \Omega$

Accepted Answer

A)   14.7 V 
B)   4.7 V 
C)   10 V 
D)   30 V 
A)   14.7 V 
B)   4.7 V 
C)   10 V 
D)   30 V

Question 19

Circuit ground or chassis ground can be thought of as a:

Accepted Answer

A) neutral connection point. 
B) common point. 
C) reference point. 
D) all of these 
A) neutral connection point. 
B) common point. 
C) reference point. 
D) all of these

Question 20

If a 1/4W resistor and a 1/2W resistor areW ired in series, they can safely dissipate 3/4W .

Accepted Answer

A) True 
 B)False

If 18 V and 6 V sources are connected in series opposing,W hat is the total voltage?

An open in a series circuit results in:

The total power dissipated in a series circuit equals the sum of the individual powers.

A 22 $\mathrm { k } \Omega$ and 12 $\mathrm { k } \Omega$ resistor are connected across a 68 V source. How is the voltage divided?

A 500 $k \Omega$ potentiometer is connected across a 5 V source. If the voltage from the wiper to the lower end of the potentiometer is 1.2 V , what is the resistance of that lower part?

When 50 V is applied to four series resistors, 100 $\mu \mathrm { A }$ flows. If R₁=12 $\mathrm { k } \Omega$ , R₂=47 $\mathrm { k } \Omega$ and R₃=56 k $\Omega$ , what is the value of R₄ ?

Four resistors are connected in series across an 18 V source. Three resistors drop 0 V and one resistor drops 18 V. Whatʹs the trouble?

(a) Figure $4 < 2$ -Refer to Figure 4-2a. The resistor between points E and D looks charred.W hat most likely Would cause this?

If each of the six resistors in a series circuit drops 5 V, the source voltage ________.

If 6.8 $\mathrm { k } \Omega$ , 1.2 $\mathrm { k } \Omega$ and 5.6 $\mathrm { k } \Omega$ resistors are wired in series, the total resistance is 13.6 $\mathrm { k } \Omega$

If 12 V and -19 V sources are connected so their total voltage is -7 V, they are ________.

If a resistor is rated at 1/2W , it can safely dissipate 0.325W .

Two resistors are in series across a $12 \mathrm {~V}$ source. If each resistor equals $470 \mathrm { k } \Omega$ , what is the voltage across each resistor?

If a 10 $\mathrm { k } \Omega$ and 5 $\mathrm { k } \Omega$ resistor are connected in series across a 12V source, the voltage across the 10 k $\Omega$ resistor is and the voltage across the 5 $\mathrm { k } Q$ resistor is

Two 100 $\mathrm { k } \Omega$ resistors are wired in series across a 20V source. How much voltage does each resistor drop?

Circuit ground or chassis ground can be thought of as a:

If a 1/4W resistor and a 1/2W resistor areW ired in series, they can safely dissipate 3/4W .

Quantities and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Time Response of Reactive Circuits

Transformers

Regulators, Filters, and Op-Amps

Understanding Transducers, Sensors, and Conversion in Industrial Processes

Filters

Exam 4: Series Circuits

If 18 V and 6 V sources are connected in series opposing,W hat is the total voltage?

An open in a series circuit results in:

The total power dissipated in a series circuit equals the sum of the individual powers.

A 22 kΩ\mathrm { k } \OmegakΩ and 12 kΩ\mathrm { k } \OmegakΩ resistor are connected across a 68 V source. How is the voltage divided?

A 500 kΩk \OmegakΩ potentiometer is connected across a 5 V source. If the voltage from the wiper to the lower end of the potentiometer is 1.2 V , what is the resistance of that lower part?

Figure 4<1\text { Figure } 4 < 1 Figure 4<1 -Calculate PR2\mathrm { PR } _ { 2 }PR2​ in Figure 4-1 if VR1\mathrm { VR } 1VR1 =16 V, R1=10 kΩ\mathrm { k } \OmegakΩ , R2=10 kΩ\mathrm { k } \OmegakΩ and R3=15 kΩ\mathrm { k } \OmegakΩ .

When 50 V is applied to four series resistors, 100 μA\mu \mathrm { A }μA flows. If R1=12 kΩ\mathrm { k } \OmegakΩ , R2=47 kΩ\mathrm { k } \OmegakΩ and R3=56 k Ω\OmegaΩ , what is the value of R4 ?

Four resistors are connected in series across an 18 V source. Three resistors drop 0 V and one resistor drops 18 V. Whatʹs the trouble?

(a) Figure 4<24 < 24<2 -Refer to Figure 4-2a. The resistor between points E and D looks charred.W hat most likely Would cause this?

If each of the six resistors in a series circuit drops 5 V, the source voltage ________.

If 6.8 kΩ\mathrm { k } \OmegakΩ , 1.2 kΩ\mathrm { k } \OmegakΩ and 5.6 kΩ\mathrm { k } \OmegakΩ resistors are wired in series, the total resistance is 13.6 kΩ\mathrm { k } \OmegakΩ

If 12 V and -19 V sources are connected so their total voltage is -7 V, they are ________.

If a resistor is rated at 1/2W , it can safely dissipate 0.325W .

Two resistors are in series across a 12 V12 \mathrm {~V}12 V source. If each resistor equals 470kΩ470 \mathrm { k } \Omega470kΩ , what is the voltage across each resistor?

Figure 4<1\text { Figure } 4 < 1 Figure 4<1 -Calculate IT in Figure 4-1 if R1=4.7 kΩ\mathrm { k } \OmegakΩ , VR1=10 V,R2=4.7 kΩ\mathrm { k } \OmegakΩ and R3=4.7 kΩ\mathrm { k } \OmegakΩ

If a 10 kΩ\mathrm { k } \OmegakΩ and 5 kΩ\mathrm { k } \OmegakΩ resistor are connected in series across a 12V source, the voltage across the 10 k Ω\OmegaΩ resistor is and the voltage across the 5 kQ\mathrm { k } QkQ resistor is

Two 100 kΩ\mathrm { k } \OmegakΩ resistors are wired in series across a 20V source. How much voltage does each resistor drop?

Circuit ground or chassis ground can be thought of as a:

If a 1/4W resistor and a 1/2W resistor areW ired in series, they can safely dissipate 3/4W .

Quantities and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Time Response of Reactive Circuits

Transformers

Regulators, Filters, and Op-Amps

Understanding Transducers, Sensors, and Conversion in Industrial Processes

Filters

A 22 $\mathrm { k } \Omega$ and 12 $\mathrm { k } \Omega$ resistor are connected across a 68 V source. How is the voltage divided?

A 500 $k \Omega$ potentiometer is connected across a 5 V source. If the voltage from the wiper to the lower end of the potentiometer is 1.2 V , what is the resistance of that lower part?

When 50 V is applied to four series resistors, 100 $\mu \mathrm { A }$ flows. If R₁=12 $\mathrm { k } \Omega$ , R₂=47 $\mathrm { k } \Omega$ and R₃=56 k $\Omega$ , what is the value of R₄ ?

(a) Figure $4 < 2$ -Refer to Figure 4-2a. The resistor between points E and D looks charred.W hat most likely Would cause this?

If 6.8 $\mathrm { k } \Omega$ , 1.2 $\mathrm { k } \Omega$ and 5.6 $\mathrm { k } \Omega$ resistors are wired in series, the total resistance is 13.6 $\mathrm { k } \Omega$

Two resistors are in series across a $12 \mathrm {~V}$ source. If each resistor equals $470 \mathrm { k } \Omega$ , what is the voltage across each resistor?

If a 10 $\mathrm { k } \Omega$ and 5 $\mathrm { k } \Omega$ resistor are connected in series across a 12V source, the voltage across the 10 k $\Omega$ resistor is and the voltage across the 5 $\mathrm { k } Q$ resistor is

Two 100 $\mathrm { k } \Omega$ resistors are wired in series across a 20V source. How much voltage does each resistor drop?