winnie, Very good explanation. The only part that I might question some is if a person touches the cooktop, the resistence is going to be so much higher than the wire path, they wouldn't get shocked. But of course we don't want to take any chances at all, and should wire it with no chance of a path. The point about making a connection at one point only, makes great sense. Again, very good.. Thanks,
The Golden Rule - "The man with the gold makes the rule"