Difference between AC & DC

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Answer:-
 Direct current                 Alternating current
• current flow only     • current changes its
One direction               direction periodicly
• It cannot transfer    • It can travel at long
at long distance            distance
• Frequency is zero    • Frequency is 50hz 
    in DC.                          60hz in AC 
• source is battery      • source is generator
• DC circuit have         • AC circuit have resi
only resistor                  tor capacitor and
                                         inductor
• power factor is.         • power factor lies   
always 1.                       0 to 1.
• Less economical       • Highly economical



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