Tolerance rating on a 0 Ohm resistor??? I'm just curious why the zero ohm "jumper" resistors I use have a tolerance rating of 5%. This doesn't really make sense to me because 5% of 0 Ohms is still 0 Ohms. I understand that even a close to ideal conductor is not going to be 0 Ohms, but why do they use a percentage of 0 to show the tolerance rather than say [tex]\pm[/tex] 0.1 Ohms??