What will happen if DC supply is given to AC motor?
Ans:AC motor works on the principle of induction.The windings in the AC machine are wound either in star or in delta.(AC machine windings).Only if there is a rotating magnetic field,we have an EMF being induced and hence current.so, only when these current carrying conductors are placed in the magnetic field, torque will be produced.so, if we give DC supply,no emf,no current, and hence no motion!!moreover,when DC is given,impedance is very low(bcoz,the effect of inductance of coil is getting neglected in DC).So, the winding will be burnt.
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