Alternating Current & Direct Current

• Current is the flow of electric charge around an electrical circuit.
• Direct Current..- A current that flows in one direction only, and is represented by a single arrow.

  -Cells and batteries contain fixed positive and negative terminals.

  this implies that current from the battery flows in one way at all times, from positive end to the negative end.
• Direct current- used for all devices powered by batteries.
• Alternating current- if the EMF alternately directs itslef,associated current also flows alternately along the conductor.
• Is a type of a current that reverses the direction alternately many times per second. ALTENATING CURRENT