“We can see from our definition that the positive plate in Fig. 23-1 is at a higher potential than the negative plate........."
I saw this statement in a book. May I know how to calculate the potential of a charged plate?
Recently I am reading about electirc and electromagnet. I found electric field and the field line a bit confusing. What forms the field, or the field line? Is it photon?
Secondly, why must electron orbit around proton, and not proton orbit the electron?
Thanks in avanced.