Question : Problem: Resistance vs. Impedance

Can someone tell me the difference between Resistance vs. Impedance ?

Answer : Problem: Resistance vs. Impedance

impedance is including the resistance R,if the cicuit is DC ,then the impedance will be the same as resistance (no changing in current flow directions so no effect for capacitors or coils reactances)
impedance (X),
(X)=Xr=R .
   but in AC circuits impedance will be three parts:
 1) resistance (R) 0 degree
 2) capacitor reactance (Xc)-90 degree
 3) inductor reactance (Xl)+90 degree
impedance (X):

 (X)=Xr+Xc+Xl
in this case impedance will be MORE GENERAL than resistance because of reacting components like(capacitors and inductors effects) .hope this will clear the case.