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Physics
Pretest
Question 9
9
lesson pretest
Multiple Choice
Pretest
Question 9 • Physics
How does an electric generator work?
Answer
A
The axle rotates the armature in the magnetic field of a permanent magnet, which induces an electric current.
B
The armature rotates the axle in the magnetic field of an electromagnet, which induces an electric current.
C
The axle rotates the armature in the magnetic field of an electromagnet, which induces an electric current.
D
The armature rotates the axle in the magnetic field of a permanent magnet, which induces an electric current.
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