Site MapHelpFeedbackTopic 4.4
Topic 4.4
(See related pages)

1
Potential difference is…
A)the change in energy of a unit of charge before it passes through a source.
B)the change in the energy of a unit of charge after it passes through a source.
C)the change in the number of electrical charges during the movement of the charges.
D)the change of the energy levels as the charges separate.
2
The symbol used for potential difference is…
A)R.
B)I.
C)V.
D)V.
3
An ampere is…
A)the potential difference between the charges flowing through a wire.
B)the voltage of a wire.
C)the amount of resistance of an object to electrical charge flowing through it.
D)the amount of current flowing through a wire.
4
The filament in a light bulb is an example of…
A)resistance.
B)voltage.
C)conduction.
D)energy.
5
What does a voltmeter measure?
A)the difference in energy between two points in a circuit
B)the current passing through a circuit
C)the load of each section of a circuit
D)the potential difference of each source in the circuit
6
A voltmeter must be connected…
A)beside the ammeter.
B)to both sides of the load.
C)to both sides of the switch.
D)to only one side of the dry cell.
7
If you increase resistance in a circuit, and keep the potential difference the same…
A)the current fluctuates.
B)the current increases.
C)the current decreases.
D)the current stays the same.





To learn more about the book this website supports, please visit its Information Center.
(c)2009 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Notice.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


Science Links 9Online Learning Center

Home > Unit 4 > Topic 4.4