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प्रश्न
Why must continuous mechanical work be supplied to an AC generator?
पर्याय
The generator must oppose a strong, steady field rather than a flux change.
The induced EMF continuously accelerates the rotation without work.
A rotating coil has no changing magnetic flux.
As the coil rotates, the induced EMF opposes the rotation as back EMF.
MCQ
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उत्तर
Rotation of the coil induces an EMF that opposes the rotation, called back EMF. Mechanical work must be supplied continuously to maintain rotation.
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