Question 1

Power is generated by the source of applied voltage and consumed in the resistance as heat.

Accepted Answer

A) True 
 B)False

Question 2

An example of a nonlinear resistance is the

Accepted Answer

A)   carbon resistor
B)   copper wire
C)   tungsten filament
D)   conductor silverE) B) and C)
F) All of the above

Question 3

The unit of electric power is the joule.

Accepted Answer

A) True 
 B)False

Question 4

What is the potential difference across a one-ohm resistance that has one ampere of current through it?

Accepted Answer

A)   One volt
B)   One ampere
C)   One watt
D)   One jouleE) A) and C)
F) C) and D) A

Question 5

Note that the resistor itself is very likely to develop a short circuit because of the nature of its construction.

Accepted Answer

A) True 
 B)False

Question 6

A ______________ is a material whose elements have an atomic structure that allows free electrons to drift through it with more or less force applied.

Accepted Answer

The answer of A ______________ is a material whose elements...

Question 7

If the resistance in a circuit is kept the same, but the voltage is varied, the current will ______________.

Accepted Answer

The answer of If the resistance in a circuit is...

Question 8

Multiple and submultiple values used in electronic applications are based on the ______________ system of units.

Accepted Answer

The answer of Multiple and submultiple values used in electronic...

Question 9

An important safety tip to follow is to keep yourself insulated from earth ground when working on power-line circuits.

Accepted Answer

A) True 
 B)False

Question 10

Power is equal to

Accepted Answer

A)   V x R
B)   I x R
C)   I x V
D)   I / VE) All of the above
F) A) and D)

Question 11

Concerning electric shock, the threshold of sensation occurs when the current through the body is only slightly above _________ A.

Accepted Answer

A)   0.001
B)   0.01
C)   0.1
D)   1.0E) All of the above
F) A) and D)

Question 12

A straight-line graph shows that a resistor is

Accepted Answer

A)   linear
B)   nonlinear
C)   very large
D)   very smallE) B) and C)
F) C) and D)

Question 13

When the applied voltage is constant, the current is more with

Accepted Answer

A)   less resistance
B)   more resistance
C)   less conductance
D)   an open circuitE) B) and D)
F) B) and C) A

Question 14

When plotting a graph of current versus voltage, the horizontal axis is referred to as the x axis or as the ______________.

Accepted Answer

The answer of When plotting a graph of current versus...

Question 15

The work done in one second by one volt of potential difference in moving one coulomb of charge is the

Accepted Answer

A)   joule
B)   watt
C)   ohm
D)   watt-secondE) B) and C)
F) None of the above

Question 16

We pay for electricity in kilowatts.

Accepted Answer

A) True 
 B)False

Question 17

The metric system uses what letter for 1 million?

Accepted Answer

A)   G
B)   T
C)   m
D)   ME) A) and B)
F) A) and D) D

Question 18

A sudden involuntary contraction of the muscles, with a feeling of pain, caused by current through the body is referred to as

Accepted Answer

A)   exercise
B)   grounding
C)   shock
D)   workE) A) and D)
F) None of the above

Question 19

How much current is needed for a 600-W, 120-V toaster?

Accepted Answer

A)   0.5 A
B)   5 mA
C)   5 A
D)   50 mAE) C) and D)
F) A) and B)

Question 20

What piece of equipment provides a variable dc output voltage to electronic circuits under test?

Accepted Answer

A)   Signal generator
B)   Multimeter
C)   Power supply
D)   OscilloscopeE) None of the above
F) A) and B)

Exam 4: Ohms Law

Power is generated by the source of applied voltage and consumed in the resistance as heat.

Correct AnswerverifiedShow Answer

An example of a nonlinear resistance is the

Correct AnswerverifiedShow Answer

The unit of electric power is the joule.

Correct AnswerverifiedShow Answer

What is the potential difference across a one-ohm resistance that has one ampere of current through it?

Correct AnswerverifiedA

Note that the resistor itself is very likely to develop a short circuit because of the nature of its construction.

Correct AnswerverifiedShow Answer

A ______________ is a material whose elements have an atomic structure that allows free electrons to drift through it with more or less force applied.

Correct AnswerverifiedShow Answer

If the resistance in a circuit is kept the same, but the voltage is varied, the current will ______________.

Correct AnswerverifiedShow Answer

Multiple and submultiple values used in electronic applications are based on the ______________ system of units.

Correct AnswerverifiedShow Answer

An important safety tip to follow is to keep yourself insulated from earth ground when working on power-line circuits.

Correct AnswerverifiedShow Answer

Power is equal to

Correct AnswerverifiedShow Answer

Concerning electric shock, the threshold of sensation occurs when the current through the body is only slightly above _________ A.

Correct AnswerverifiedShow Answer

A straight-line graph shows that a resistor is

Correct AnswerverifiedShow Answer

When the applied voltage is constant, the current is more with

Correct AnswerverifiedA

When plotting a graph of current versus voltage, the horizontal axis is referred to as the x axis or as the ______________.

Correct AnswerverifiedShow Answer

The work done in one second by one volt of potential difference in moving one coulomb of charge is the

Correct AnswerverifiedShow Answer

We pay for electricity in kilowatts.

Correct AnswerverifiedShow Answer

The metric system uses what letter for 1 million?

Correct AnswerverifiedD

A sudden involuntary contraction of the muscles, with a feeling of pain, caused by current through the body is referred to as

Correct AnswerverifiedShow Answer

How much current is needed for a 600-W, 120-V toaster?

Correct AnswerverifiedShow Answer

What piece of equipment provides a variable dc output voltage to electronic circuits under test?

Correct AnswerverifiedShow Answer

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