Question

WHAT IS THE DIFFERENCE BETWEEN AC AND DC CURENT ?

Answer 1

 The difference between AC and DC lies in the direction in which the electrons flow. In DC, the electrons flow steadily in a single direction, or "forward." In AC, electrons keep switching directions, sometimes going "forward" and then going "backward..........................................

Answer 2

dc direct current ,the electric current flows only in one direction and ac alternate current  on the other hand it change  periodically