Question 1

If a  330$\Omega$  resistor dissipates  2 W , its voltage drop equals_______

Accepted Answer

A)   660 V 
B)   2.57 V 
C)   25.7 V 
D)   6.6 V 
A)   660 V 
B)   2.57 V 
C)   25.7 V 
D)   6.6 V

Question 2

An electronic power supply with a rated current capacity of 500 mA can adequately illuminate a 10 V @ 5W lamp.

Accepted Answer

A) True 
 B)False

Question 3

$$\text { Figure } 3 < 1$$
-If  V=100 V  and  I=1 mA in Figure  3-1 , the power dissipated by the resistor equals_____

Accepted Answer

A)   1 W 
B)   10 W 
C)   100 mW 
D)   10 mW 
A)   1 W 
B)   10 W 
C)   100 mW 
D)   10 mW

Question 4

What is the resistance of a  150 W bulb when it is operating in a circuit with a supply of  125 V ?

Accepted Answer

A)   2.  
B)   104$\Omega$ 
C)   9375$\Omega$ 
D)   75 $\Omega$ 
A)   2.  
B)   104$\Omega$ 
C)   9375$\Omega$ 
D)   75 $\Omega$

Question 5

If the current is constant, voltage and resistance are directly proportional.

Accepted Answer

A) True 
 B)False

Question 6

Which is the correct formula for finding power?

Accepted Answer

A)  $\mathrm { P } = \mathrm { V } 2 \div \mathrm { R }$ 
B)  $\mathrm { P } = \mathrm { V } \times \mathrm { I }$ 
C)  $\mathrm { P } = \mathrm { I }^ 2 \times \mathrm { R }$ 
D)  all of these 
A)  $\mathrm { P } = \mathrm { V } 2 \div \mathrm { R }$ 
B)  $\mathrm { P } = \mathrm { V } \times \mathrm { I }$ 
C)  $\mathrm { P } = \mathrm { I }^ 2 \times \mathrm { R }$ 
D)  all of these

Question 7

Resistance and current are ________.

Accepted Answer

A) similar toVoltage 
B) inversely proportional 
C) not related 
D) directly proportional 
A) similar toVoltage 
B) inversely proportional 
C) not related 
D) directly proportional

Question 8

If a resistor that is color-coded yellow-violet-brown-gold is connected to a 12 V source, thenW hat is the current flow?

Accepted Answer

A) 255 mA 
B) 26.9 mA 
C) 25.5 mA 
D) 24.3 mA 
A) 255 mA 
B) 26.9 mA 
C) 25.5 mA 
D) 24.3 mA

Question 9

What is the resistance of a  100 W  bulb when it is operating in a circuit with a supply of  120 V  ?

Accepted Answer

A)   56$\Omega$ 
B)   560$\Omega$ 
C)   2.14$\Omega$ 
D)   144$\Omega$ 
A)   56$\Omega$ 
B)   560$\Omega$ 
C)   2.14$\Omega$ 
D)   144$\Omega$

Question 10

If a resistor is rated at 1/2W , it ________.

Accepted Answer

A) can only dissipate more than 1/2W Of power 
B) always dissipates 1/2W 
C) always provides 1/2W Of power 
D) can safely dissipate 1/2W Of power 
A) can only dissipate more than 1/2W Of power 
B) always dissipates 1/2W 
C) always provides 1/2W Of power 
D) can safely dissipate 1/2W Of power

Question 11

According to Ohmʹs Law, if voltageW ere to increaseW hile resistance remained the same, current would

Accepted Answer

A) remain the same 
B) increase 
C) noW
Ay to determine 
D) decrease 
A) remain the same 
B) increase 
C) noW
Ay to determine 
D) decrease

Question 12

If a circuit's supply voltage is  15 V  and its resistance is  4700   , its current is  3.19 mA .

Accepted Answer

A) True 
 B)False

Question 13

Which of the following terms is not a resistor rating?

Accepted Answer

A) resistorV
Alue in ohms 
B) power rating 
C) resistor tolerance 
D) current 
A) resistorV
Alue in ohms 
B) power rating 
C) resistor tolerance 
D) current

Question 14

Voltage and current are ________.

Accepted Answer

A) quantities that add 
B) unrelated 
C) inversely proportional 
D) directly proportional 
A) quantities that add 
B) unrelated 
C) inversely proportional 
D) directly proportional

Question 15

If a circuitʹs resistance decreases, its current also decreases.

Accepted Answer

A) True 
 B)False

Question 16

$$\text { Figure } 3 < 1$$
-If the voltage is  15 V  and resistance is color coded red-red-brown-silver in Figure  3-1 , what are the maximum and minimum possible current?

Accepted Answer

A)  IMINIMUM  =64.9 mA, IMAXIMUM=71.8 mA 
B)  IMINIMUM  =56.8 mA , IMAXIMUM  =85.2 mA 
C)  IMINIMUM  =62.0 mA , IMAXIMUM  =75.8 mA 
D)  none of these 
A)  IMINIMUM  =64.9 mA, IMAXIMUM=71.8 mA 
B)  IMINIMUM  =56.8 mA , IMAXIMUM  =85.2 mA 
C)  IMINIMUM  =62.0 mA , IMAXIMUM  =75.8 mA 
D)  none of these

Question 17

Using Watt's law and substituting power can be calculated as_________

Accepted Answer

A)  $\mathrm { P } = \mathrm { I } ^2 \mathrm { R }$ 
B)   P=V I 
C)  $\mathrm { P } = \mathrm { V }^ 2 / \mathrm { R }$ 
D)  all of these 
A)  $\mathrm { P } = \mathrm { I } ^2 \mathrm { R }$ 
B)   P=V I 
C)  $\mathrm { P } = \mathrm { V }^ 2 / \mathrm { R }$ 
D)  all of these

Question 18

$$\text { Figure } 3 < 1$$
-If V=85 V  and  I=15 mA  in Figure  3-1 , the resistance equals________

Accepted Answer

A)   1.28$\Omega$ 
B)   567$\Omega$ 
C)   5.67 $k \Omega$ 
D)   52.3$\Omega$ 
A)   1.28$\Omega$ 
B)   567$\Omega$ 
C)   5.67 $k \Omega$ 
D)   52.3$\Omega$

Question 19

$$\text { Figure } 3 < 1$$
-If  V=25 V and R=50 $\mathrm { k } \Omega$
 in Figure  3-1 , the current equals________

Accepted Answer

A)   0.5 mA 
B)   5 mA 
C)   2 mA 
D)   50 mA 
A)   0.5 mA 
B)   5 mA 
C)   2 mA 
D)   50 mA

Question 20

$$\text { Figure } 3 < 1$$
-If the voltageW ere suddenly switched on in Figure 3-1, ________.

Accepted Answer

A)  the current would be zero 
B)  the current would gradually decrease and then increase 
C)  the current would flow 
D)  the current would gradually decrease 
A)  the current would be zero 
B)  the current would gradually decrease and then increase 
C)  the current would flow 
D)  the current would gradually decrease

If a 330 $\Omega$ resistor dissipates 2 W , its voltage drop equals_______

An electronic power supply with a rated current capacity of 500 mA can adequately illuminate a 10 V @ 5W lamp.

$\text { Figure } 3 < 1 -If V=100 V and I=1 mA in Figure 3-1 , the power dissipated by the resistor equals_$ $\text { Figure } 3 < 1$ -If V=100 V and I=1 mA in Figure 3-1 , the power dissipated by the resistor equals_

What is the resistance of a 150 W bulb when it is operating in a circuit with a supply of 125 V ?

If the current is constant, voltage and resistance are directly proportional.

Which is the correct formula for finding power?

Resistance and current are ________.

If a resistor that is color-coded yellow-violet-brown-gold is connected to a 12 V source, thenW hat is the current flow?

What is the resistance of a 100 W bulb when it is operating in a circuit with a supply of 120 V ?

If a resistor is rated at 1/2W , it ________.

According to Ohmʹs Law, if voltageW ere to increaseW hile resistance remained the same, current would

If a circuit's supply voltage is 15 V and its resistance is 4700 , its current is 3.19 mA .

Which of the following terms is not a resistor rating?

Voltage and current are ________.

If a circuitʹs resistance decreases, its current also decreases.

Using Watt's law and substituting power can be calculated as_________

$\text { Figure } 3 < 1 -If V=85 V and I=15 mA in Figure 3-1 , the resistance equals$ $\text { Figure } 3 < 1$ -If V=85 V and I=15 mA in Figure 3-1 , the resistance equals

$\text { Figure } 3 < 1 -If V=25 V and R=50 \mathrm { k } \Omega in Figure 3-1 , the current equals$ $\text { Figure } 3 < 1$ -If V=25 V and R=50 $\mathrm { k } \Omega$ in Figure 3-1 , the current equals

$\text { Figure } 3 < 1 -If the voltageW ere suddenly switched on in Figure 3-1, .$ $\text { Figure } 3 < 1$ -If the voltageW ere suddenly switched on in Figure 3-1, .

Quantities and Units

Voltage, Current, and Resistance

Series Circuits

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 3: Ohms Law, Energy, and Power

If a 330 Ω\OmegaΩ resistor dissipates 2 W , its voltage drop equals_______

An electronic power supply with a rated current capacity of 500 mA can adequately illuminate a 10 V @ 5W lamp.

Figure 3<1\text { Figure } 3 < 1 Figure 3<1 -If V=100 V and I=1 mA in Figure 3-1 , the power dissipated by the resistor equals_____

What is the resistance of a 150 W bulb when it is operating in a circuit with a supply of 125 V ?

If the current is constant, voltage and resistance are directly proportional.

Which is the correct formula for finding power?

Resistance and current are ________.

If a resistor that is color-coded yellow-violet-brown-gold is connected to a 12 V source, thenW hat is the current flow?

What is the resistance of a 100 W bulb when it is operating in a circuit with a supply of 120 V ?

If a resistor is rated at 1/2W , it ________.

According to Ohmʹs Law, if voltageW ere to increaseW hile resistance remained the same, current would

If a circuit's supply voltage is 15 V and its resistance is 4700 , its current is 3.19 mA .

Which of the following terms is not a resistor rating?

Voltage and current are ________.

If a circuitʹs resistance decreases, its current also decreases.

Figure 3<1\text { Figure } 3 < 1 Figure 3<1 -If the voltage is 15 V and resistance is color coded red-red-brown-silver in Figure 3-1 , what are the maximum and minimum possible current?

Using Watt's law and substituting power can be calculated as_________

Figure 3<1\text { Figure } 3 < 1 Figure 3<1 -If V=85 V and I=15 mA in Figure 3-1 , the resistance equals________

Figure 3<1\text { Figure } 3 < 1 Figure 3<1 -If V=25 V and R=50 kΩ\mathrm { k } \OmegakΩ in Figure 3-1 , the current equals________

Figure 3<1\text { Figure } 3 < 1 Figure 3<1 -If the voltageW ere suddenly switched on in Figure 3-1, ________.

Quantities and Units

Voltage, Current, and Resistance

Series Circuits

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

If a 330 $\Omega$ resistor dissipates 2 W , its voltage drop equals_______

$\text { Figure } 3 < 1 -If V=100 V and I=1 mA in Figure 3-1 , the power dissipated by the resistor equals_$ $\text { Figure } 3 < 1$ -If V=100 V and I=1 mA in Figure 3-1 , the power dissipated by the resistor equals_

$\text { Figure } 3 < 1 -If V=85 V and I=15 mA in Figure 3-1 , the resistance equals$ $\text { Figure } 3 < 1$ -If V=85 V and I=15 mA in Figure 3-1 , the resistance equals

$\text { Figure } 3 < 1 -If V=25 V and R=50 \mathrm { k } \Omega in Figure 3-1 , the current equals$ $\text { Figure } 3 < 1$ -If V=25 V and R=50 $\mathrm { k } \Omega$ in Figure 3-1 , the current equals

$\text { Figure } 3 < 1 -If the voltageW ere suddenly switched on in Figure 3-1, .$ $\text { Figure } 3 < 1$ -If the voltageW ere suddenly switched on in Figure 3-1, .