In a three phase generator electricity is produced due to the .

moving magnet

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moving coil

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stationary magnet

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Solution

The correct option is A moving magnet
We know that emf is produced in a coil when the flux through it is changed. Flux in the coil can be changed by moving the coil or by moving the magnet. In a three phase generator, there are three seperate coils inclined at 120 $^{\circ}$ and a moving magnet. Moving magnet causes change in flux in the three coils and hence three electrical signal with different phases are produced.

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