Will a Resist Magic ability with a magnitude of 100 or higher effectively negate magic damage or applied magic effects (like poison)?

EDIT:

According to the Wiki, a 100% Resist Magic effect negates all magicka. But, does that translate smoothly over to magnitude? So 100 magnitude == 100%??

I suppose I could just set the magnitude to some extremely high number like 10000, and it will have the same effect as 100% magicka resistance.