Question 1

A three-resistor circuit has a total power of 25 W. Two of the resistors dissipate 10 W and 5 W, respectively. How much power does the third resistor dissipate?

Accepted Answer

A)  25 W 
B)  10 W 
C)  2 W 
D)  15 W 
A)  25 W 
B)  10 W 
C)  2 W 
D)  15 W B

Question 2

The amount of _____ across a resistor is proportional to its resistance.

Accepted Answer

A)  voltage drop 
B)  voltage rise 
C)  current drop 
D)  current rise 
A)  voltage drop 
B)  voltage rise 
C)  current drop 
D)  current rise A

Question 3

The total power in a circuit is equal to the sum of the _____ used by all parts.

Accepted Answer

power

Question 4

A series circuit has a total resistance of 240 Ω and a current flow of 4 A. What is the applied voltage?

Accepted Answer

A)  244 V 
B)  60 V 
C)  0.0167 V 
D)  960 V 
A)  244 V 
B)  60 V 
C)  0.0167 V 
D)  960 V

Question 5

By observing the direction of current flow through the circuit, v oltage _____ can be determined .

Accepted Answer

A)  drop 
B)  polarity 
A)  drop 
B)  polarity

Question 6

In a series circuit, the sum of the voltage drops is _____ the applied voltage.

Accepted Answer

A)  greater than 
B)  less than 
C)  equal to 
D)  unrelated to 
A)  greater than 
B)  less than 
C)  equal to 
D)  unrelated to

Question 7

A series circuit has a total resistance of 180 Ω and an applied voltage of 120 V. What is the current flow?

Accepted Answer

A)  300 A 
B)  1.5 A 
C)  60 A 
D)  0.667 A 
A)  300 A 
B)  1.5 A 
C)  60 A 
D)  0.667 A

Question 8

To symbolize a ground point made by physically driving an object such as a rod or pipe into the ground,  a(n) _____ ground symbol is used.

Accepted Answer

A)  chassis 
B)  circuit 
C)  earth 
D)  supply 
A)  chassis 
B)  circuit 
C)  earth 
D)  supply

Question 9

A series circuit has two resistors that dissipate 10 W and 15 W, respectively. What is the total power dissipation of the circuit?

Accepted Answer

A)  10 W 
B)  5 W 
C)  25 W 
D)  15 W 
A)  10 W 
B)  5 W 
C)  25 W 
D)  15 W

Question 10

When a circuit has only one path, the _____ is the same at any point.

Accepted Answer

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

Question 11

If a series circuit has resistor values of 27 Ω, 56 Ω , and 82 Ω , the total resistance is _______________ Ω .

Accepted Answer

The answer of If a series circuit has resistor values...

Question 12

A point that is used as a common connection for other parts of a circuit not actually driven into the ground is called a _____ ground.

Accepted Answer

A)  chassis 
B)  circuit 
C)  ground 
D)  supply 
A)  chassis 
B)  circuit 
C)  ground 
D)  supply

Question 13

What is the applied voltage in a series circuit with two resistors (25 V and 60 V, respectively)?

Accepted Answer

A)  35 V 
B)  85 V 
C)  25 V 
D)  60 V 
A)  35 V 
B)  85 V 
C)  25 V 
D)  60 V

Question 14

A voltage that is positive with respect to ground is  a(n) _____ voltage.

Accepted Answer

A)  above-ground 
B)  below-ground 
A)  above-ground 
B)  below-ground

Question 15

What force pushes the electrons through a resistance in a circuit?

Accepted Answer

A)  voltage 
B)  inductance 
C)  potential 
D)  current 
A)  voltage 
B)  inductance 
C)  potential 
D)  current

Question 16

A circuit that has only one path for current flow is a _____ circuit.

Accepted Answer

A)  series 
B)  parallel 
A)  series 
B)  parallel

Question 17

The current, voltage, power, and resistance in a series circuit can be calculated using _____ law.

Accepted Answer

A)  Ampere's 
B)  Coulomb's 
C)  Ohm's 
D)  Volt's 
A)  Ampere's 
B)  Coulomb's 
C)  Ohm's 
D)  Volt's

Question 18

A voltage _____ is used to provide different voltages between certain points in a circuit.

Accepted Answer

A)  doubler 
B)  multiplier 
C)  scalar 
D)  divider 
A)  doubler 
B)  multiplier 
C)  scalar 
D)  divider

Question 19

A two-resistor series circuit has an applied voltage of 100 V. The voltage across one of the resistors is 40 V. What is the voltage across the other resistor?

Accepted Answer

A)  0.4 V 
B)  2.5 V 
C)  60 V 
D)  140 V 
A)  0.4 V 
B)  2.5 V 
C)  60 V 
D)  140 V

Question 20

What device is designed to open and disconnect a circuit in the event of excessive current?

Accepted Answer

A)  fuse 
B)  power supply 
C)  wire 
D)  potentiometer 
A)  fuse 
B)  power supply 
C)  wire 
D)  potentiometer

Exam 6: Series Circuits

A three-resistor circuit has a total power of 25 W. Two of the resistors dissipate 10 W and 5 W, respectively. How much power does the third resistor dissipate?

The amount of _____ across a resistor is proportional to its resistance.

The total power in a circuit is equal to the sum of the _____ used by all parts.

A series circuit has a total resistance of 240 Ω and a current flow of 4 A. What is the applied voltage?

By observing the direction of current flow through the circuit, v oltage _____ can be determined .

In a series circuit, the sum of the voltage drops is _____ the applied voltage.

A series circuit has a total resistance of 180 Ω and an applied voltage of 120 V. What is the current flow?

To symbolize a ground point made by physically driving an object such as a rod or pipe into the ground, a(n) _____ ground symbol is used.

A series circuit has two resistors that dissipate 10 W and 15 W, respectively. What is the total power dissipation of the circuit?

When a circuit has only one path, the _____ is the same at any point.

If a series circuit has resistor values of 27 Ω, 56 Ω , and 82 Ω , the total resistance is _______________ Ω .

A point that is used as a common connection for other parts of a circuit not actually driven into the ground is called a _____ ground.

What is the applied voltage in a series circuit with two resistors (25 V and 60 V, respectively)?

A voltage that is positive with respect to ground is a(n) _____ voltage.

What force pushes the electrons through a resistance in a circuit?

A circuit that has only one path for current flow is a _____ circuit.

The current, voltage, power, and resistance in a series circuit can be calculated using _____ law.

A voltage _____ is used to provide different voltages between certain points in a circuit.

A two-resistor series circuit has an applied voltage of 100 V. The voltage across one of the resistors is 40 V. What is the voltage across the other resistor?

What device is designed to open and disconnect a circuit in the event of excessive current?

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