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Question:

what happens when an AC supply is given to a DC motor?

will DC motor run on AC supply. justify ur answer

Answer:

For a simple DC (toy) motor with permanent magnets as the stator, reversing the leads to the battery should reverse the direction of rotation. Applying AC to the motor will reverse polarity (60 cycles per second) causing the motor to buzz. In general, larger DC motors are more complex including various shunt windings, etc. To reverse rotation either the leads to the rotor windings or to the stator windings are reversed (sometimes using a reversing switch).but both windings are not reversed. Applying AC to these motors should reverse polarity to both windings which likely would not reverse rotation.
The brushes will be sparking and burning and the motor will not turn. Bad idea all around.
In an Ac generator...the direction changes as polarity changes......but if Ac is supplied to DC motor....it will not work at all.....

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