Physics, asked by GargiMahashay7962, 8 hours ago

Is back EMF AC or DC?

Answers

Answered by kperiyasamy624

Back EMF can have either a sinusoidal (AC) or a trapezoidal (DC) waveform. The shape of the back EMF is important, as it determines the type of drive current and commutation method that should be used for the motor.

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