hey there, this is my first thread, i have registered here a long time ago, but i just read. so lets make it short, i want some help in understanding the inductive impedance unit, here "http://en.wikipedia.org/wiki/Henry_(unit)" I understood most of it but i dont get it how V.s/A is equal to s2/F and then "ohm.s" we are studing this at school, we study holt physics, partially, we skipped some chapter because ministry of education took it out of curriculum.