ELEX - MAGNETISM & ELECTROMAGNETISM - B
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18 Terms
1
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Permeability is the inverse equivalent of which electrical term?
Voltage
Current
Resistance
Conductance
C
2
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Which electromagnetic device uses brushes and a commutator?
A speaker
A dc generator
A relay
A solenoid
B
3
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What is the flux density of a magnetic field whose flux is 3000 µWb and cross-sectional area is 0.25 m2?
12,000uT
83,330 T
0 T
More information is needed in order to find flux density.
A
4
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D
5
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D
6
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B
7
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B
8
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A
9
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B
10
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B
11
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D
12
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A
13
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C
14
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D
15
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A
16
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D
17
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B
18
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B
Note 
Flashcards (38)