Cob: electrical

[Mary Hooper]

My honey was in electronics/electrical in the navy and taught same in
community college. He will be competent to do wiring.
Now, he's been out of the field for a few years and says he does not
recognize the term phantom loads on GFIs. He says either it's a load or not.
Will someone be good enough to explain this wrinkle? Thanks for your
perspectives on the topic..... :-) Mary