Exercise: Magnetism And Electromagnetism

Questions for: Magnetism And Electromagnetism


A magnetic field is produced around a current-carrying conductor.
A:
True
B:
False
C:
D:
Answer: A
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When the south poles of two bar magnets are brought close together, there will be a force of attraction.
A:
True
B:
False
C:
D:
Answer: B
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A voltage is induced across a conductor if it remains absolutely stationary within a magnetic field.
A:
True
B:
False
C:
D:
Answer: B
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The unit of magnetic flux is the weber.
A:
True
B:
False
C:
D:
Answer: A
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Ferromagnetic materials have pre-existing magnetic fields.
A:
True
B:
False
C:
D:
Answer: B
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