The flux through a loop of wire can change due to many different situations.
Anything that causes a change the the flux through a loop of wire produces a potential difference across the ends of the loop. If there are N loops, the potential differences across each of the loops will be added and the total potential difference will be N times that across the ends of a single loop.
(c) Doug Davis, 2000; all rights reserved
Return to Ch 21, Electromagnetic Induction