Deck 6: Series Circuits

Question 1

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

A) above-ground
B) below-ground

Answer 1

A

Question 2

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

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

Answer 2

C

Question 3

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

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

Answer 3

D

Question 4

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

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

Question 5

Which of the following formulas is the general voltage divider formula?

A)
B)
C)
D)

Question 6

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.

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

Question 7

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

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

Question 8

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

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

Question 9

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

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

Question 10

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

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

Question 11

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

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

Question 12

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) chassis
B) circuit
C) earth
D) supply

Question 13

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?

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

Question 14

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

A) drop
B) polarity

Question 15

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

A) series
B) parallel

Question 16

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?

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

Question 17

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

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

Question 18

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

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

Question 19

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

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

Question 20

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

Question 21

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