Looking for the right area to ask question about foh din and necros?? Is this the right area or I missing something

This is it, ask away!

I was wondering do the fire and lightning resist only give you resistance when the aura is equipped? Or is there a passive part of the skill without it being equipped

"While active, this aura grants the user and nearby allies a large portion of extra Lightning resistance, as well as a bonus to maximum Lightning resist, both values increasing per level.
When the skill is inactive, the player still receives half of this latter bonus, rounded down (and only counting hard skill points, not points given by equipment). The maximum cap of 95% Resist still applies. Actual resistance is not affected, just maximum resist."
https://diablo.fandom.com/wiki/Resist_Lightning