Question 1

-1.2 V, +5 V and +6 V batteries are connected in series. The total voltage is .

Accepted Answer

A) 12.2 V 
B) 1.3 V 
C) 1.2 V 
D) 9.8 V 
A) 12.2 V 
B) 1.3 V 
C) 1.2 V 
D) 9.8 V

Question 2

Calculate IT in Figure 4 -1 if R1 = 4.7 kΩ, VR1 = 10 V, R2 = 4.7 kΩ and R3 = 4.7 kΩ.

Accepted Answer

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

Question 3

-Calculate PR2 in Figure 4 -1 if VR1 =16 V, R1 = 10 kΩ, R2 = 10 kΩ and R3 = 15 kΩ.

Accepted Answer

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

Question 4

Two resistors are in series across a 12 V source. If each resistor equals 470 kΩ, what is the voltage across each resistor?

Accepted Answer

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

Question 5

What is the easiest, most practical measurement performed during troubleshooting?

Accepted Answer

A) voltage 
B) current 
C) power 
D) resistance 
A) voltage 
B) current 
C) power 
D) resistance

Question 6

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

Accepted Answer

A) equals 5 V 
B) depends on the current 
C) depends on the resistor values 
D) equals 30 V 
A) equals 5 V 
B) depends on the current 
C) depends on the resistor values 
D) equals 30 V

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

If a 10 kΩ and 5 kΩ resistor are connected in series across a 12 V source, the voltage across the 10 k Ω resistor is and the voltage across the 5 kΩ resistor is .

Accepted Answer

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

Question 9

Calculating current for a series resistor circuit can be accomplished with a measured voltage across one of the resistors divided by that resistor's value.

Accepted Answer

A) True 
 B)False

Question 10

What type of resistor could be used as variable voltage -divider?

Accepted Answer

A) thermistor 
B) rheostat 
C) potentiometer 
D) any one of the above 
A) thermistor 
B) rheostat 
C) potentiometer 
D) any one of the above

Question 11

A 500 kΩ 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) 500 kΩ 
B) 0 Ω 
C) 120 kΩ 
D) 380 kΩ 
A) 500 kΩ 
B) 0 Ω 
C) 120 kΩ 
D) 380 kΩ

Question 12

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

Accepted Answer

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

Question 13

If -12 V and -6 V are connected so they equal -18 V, these sources are .

Accepted Answer

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

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

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

Accepted Answer

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

Question 16

Four series resistors are connected across a 30 V source and carry 0.125 mA. If R1 = 10 kΩ, R2 = 33 kΩ and R3 = 47 kΩ, what is the value of R4?

Accepted Answer

A) 150 Ω 
B) 1.5 kΩ 
C) 150 kΩ 
D) 15 kΩ 
A) 150 Ω 
B) 1.5 kΩ 
C) 150 kΩ 
D) 15 kΩ

Question 17

Three 2 V cells in series with one in series -opposing would yield 2 V.

Accepted Answer

A) True 
 B)False

Question 18

A series circuit has multiple current paths.

Accepted Answer

A) True 
 B)False

Question 19

In a series 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 current is the same throughout the circuit. 
A) the smallest resistor. 
B) the first resistor. 
C) the largest resistor. 
D) any resistor, since the current is the same throughout the circuit.

Question 20

- Voltage from C to ground is 100 V. What is the probable cause of failure?

Accepted Answer

A) open between A and B 
B) open between E and D 
C) short between A and B 
D) voltage reading is normal 
A) open between A and B 
B) open between E and D 
C) short between A and B 
D) voltage reading is normal

-1.2 V, +5 V and +6 V batteries are connected in series. The total voltage is .

Calculate IT in Figure 4 -1 if R1 = 4.7 kΩ, VR1 = 10 V, R2 = 4.7 kΩ and R3 = 4.7 kΩ.

-Calculate PR2 in Figure 4 -1 if VR1 =16 V, R1 = 10 kΩ, R2 = 10 kΩ and R3 = 15 kΩ.

Two resistors are in series across a 12 V source. If each resistor equals 470 kΩ, what is the voltage across each resistor?

What is the easiest, most practical measurement performed during troubleshooting?

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

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

If a 10 kΩ and 5 kΩ resistor are connected in series across a 12 V source, the voltage across the 10 k Ω resistor is and the voltage across the 5 kΩ resistor is .

Calculating current for a series resistor circuit can be accomplished with a measured voltage across one of the resistors divided by that resistor's value.

What type of resistor could be used as variable voltage -divider?

A 500 kΩ 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?

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

If -12 V and -6 V are connected so they equal -18 V, these sources are .

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

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

Four series resistors are connected across a 30 V source and carry 0.125 mA. If R1 = 10 kΩ, R2 = 33 kΩ and R3 = 47 kΩ, what is the value of R4?

Three 2 V cells in series with one in series -opposing would yield 2 V.

A series circuit has multiple current paths.

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

- Voltage from C to ground is 100 V. What is the probable cause of failure?

Systems, 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

Rccircuits

Inductors

Rlcircuits

Rlccircuits and Resonance

Transformers

Time Response of Reactive Circuits

Filters

Exam 4: Series Circuits

-1.2 V, +5 V and +6 V batteries are connected in series. The total voltage is .

Calculate IT in Figure 4 -1 if R1 = 4.7 kΩ, VR1 = 10 V, R2 = 4.7 kΩ and R3 = 4.7 kΩ.

-Calculate PR2 in Figure 4 -1 if VR1 =16 V, R1 = 10 kΩ, R2 = 10 kΩ and R3 = 15 kΩ.

Two resistors are in series across a 12 V source. If each resistor equals 470 kΩ, what is the voltage across each resistor?

What is the easiest, most practical measurement performed during troubleshooting?

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

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

If a 10 kΩ and 5 kΩ resistor are connected in series across a 12 V source, the voltage across the 10 k Ω resistor is and the voltage across the 5 kΩ resistor is .

Calculating current for a series resistor circuit can be accomplished with a measured voltage across one of the resistors divided by that resistor's value.

What type of resistor could be used as variable voltage -divider?

A 500 kΩ 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?

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

If -12 V and -6 V are connected so they equal -18 V, these sources are .

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

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

Four series resistors are connected across a 30 V source and carry 0.125 mA. If R1 = 10 kΩ, R2 = 33 kΩ and R3 = 47 kΩ, what is the value of R4?

Three 2 V cells in series with one in series -opposing would yield 2 V.

A series circuit has multiple current paths.

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

- Voltage from C to ground is 100 V. What is the probable cause of failure?

Systems, 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

Rccircuits

Inductors

Rlcircuits

Rlccircuits and Resonance

Transformers

Time Response of Reactive Circuits

Filters