More question about modules !!!

I really starting to get frustrated about the %elemental damage modules.

lets say ima using 30mm rifle:

1. when i place a pure attack damage % bonuse module i can see that the base damage increasing according to the percentile of the base attack damage of the weapon.

2.but when i put in a physical %damge bonus module i see no change in the base attack damage of the weapon.

so the question is IF i put in any elemental %damage bonus module would i inflict MORE DAMAGE? (as babylon said if dmg is 100 when 20%elec module is inserted it would inflict 100 base attack damage + 20 elec damge?)

or does elemental %damage modules has nothing to do with HOW MUCH DAMAGE u inflict to the mobs.|||Could you post the exact wording? I don't remember exactly which mod does what. I know there are two main differences, one that makes additional damage of that type, and one that just makes it more likely to give them an elemental effect on them.|||I know what you mean. I think the first one you talking about is a mod with increase damage by xx% (Such as Blessed/Divine/Sacred affix) and the second one is a mod that ADDS physical damage to all types to weapon (ie hammering/pounding/thunderous affix). To answer your question, although I didn't test it myself, I guess the electrical damage will apply, but it won't shock anyone unless you put an shock attack strength mods in the weapon.

Hope this helps.