@carlsbad wrote
In my first physics class I asked why C wasn't used for Current and never got a good answer. i have a physics degree from the University of Chicago. So we will keep using I for current
The conventional symbol for current is I, which originates from the French phrase intensité du courant, (current intensity). Current intensity is often referred to simply as current. The I symbol was used by André-Marie Ampère, after whom the unit of electric current is named, in formulating Ampère's force law