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When dc supply is applied across the primary winding then a constant current of higher magnitude will flow through it due to low resistance of winding.

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For starting, ignition and lighting of automobiles, aircrafts etc. If any variations, can connect to me through karan. Changing the direction of torque applied to the shaft changes the direction of power flow; with no applied torque, the shaft rotates due to the difference in frequency between the networks connected to the rotor and stator.

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