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Which statement about the coil of a simple ac generator is correct?
AIt spins about an axis parallel to the field
BIt stays fixed while the field is switched off
CIt slides back and forth along the field
DIt spins about an axis perpendicular to the field
Answer & Solution
Correct answer: D. It spins about an axis perpendicular to the field
With the axis at right angles to B, the angle between field and area vector changes steadily and flux varies.
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