What happens if you put a: -Alternating Voltage [A Potential Difference that keeps Changing Direction] -Direct Voltage [A Potential Different that DOESN'T Change its Direction] In a CRO [Simply, what would it look like in a Graph]

-The Alternating Voltage would simply be a Wave, that goes Up and Down in a Regular Pattern. If its Parallel then No Electricity will be Made [It ain't Moving] -The Direct Voltage would simply be a Line, that is Constant. That's it