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Electricity And Magnetism
Test Description: Part E of Final Exam Review
Instructions: Answer all questions to get your test result.
1) The relationship between Current, Voltage and Resistance is explained by:
A
Ohm's Law
B
Newton's Law
C
Edison's Law of Illumination
D
Tesla's Law of Electrostatics
2) The flow of electrons in a circuit is called:
A
current
B
resistance
C
voltage
3) The opposition to the flow of electrons is known as:
A
current
B
resistance
C
voltage
4) The force (potential difference) that drives electrons along in a circuit is called:
A
resistance
B
voltage
C
current
5) Resistance is measured in:
A
volts
B
amps
C
ohms
6) What is the voltage in a circuit with a current of 1.5 amps and a resistance of 9 ohms?
A
6 v
B
13.5 v
C
,17 v
7) Which of the following would increase the strength of an electromagnet?
A
Increase the number of turns of the coil.
B
Increase the amount of current.
C
All of these.
D
Increase the size of the core.
8) Dropping a magnet causes the domains to come out of alignment and takes away from its magnetic properties.
A
True
B
False
9) In magnets:
A
like poles attract each other.
B
like poles repel each other.
10) An open circuit:
A
allows electrons to flow freely.
B
does not allow electrons to flow.
*select an answer for all questions
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