Hello:

A bit confused over terminology on this, was wondering if anyone can clarify
it for me.

Regarding the typical under sink bathroom drain traps:

I always thought these U-bend assemblies were called "J" Traps.

But I see that in some text they term them "P" Traps.

What are the differences between a J and a P Trap, then ?

Couldn't find any good pix of these two types; anyone know of any links
showing differences, etc. ?

Thanks,
Bob