A circular loop of wire has a changing magnetic field running through it...however, the magnetic field is not touching the wire; its contained so that it simply runs through the loop without touching the wire. Apparently, there is still an emf through the wire even though the magnetic field is not touching it. Its acceptable when looking at the mathematical equations, but how does it conceptually work: the magnetic field is not even touching the wire, but its still producing an emf. How does that happen??