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(i) Flow of Charge Carriers:

     In DC current, charge carriers flow along one direction only.

     In AC current, charge carriers flow back and forth.

(ii)Variation of Power:

    In DC current, the power dissipated across a load remains nearly constant.

    In AC current, the power dissipated across a load varies continuously.


     DC current could be transmitted using only two cables.

     AC current (3-phase) needs 3 cables to transmit.

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