Ignoring signs, I know from the Faraday
Lenz, this law is equal to d phi sub m dt, and
this is a voltage here. I know that the
electric field is equal to dV/dr. Again,
I'm not worrying about signs or
direction, anything like that, is sort of
a pseudo derivation. So dV is equal to 
Edr, and so V would be the integral of Edr.
And so we can plug that into here
since this is a voltage, this would be...
since it's around a closed surface, E dot
dr l, whatever letter you happen to be
using it's equal to negative delta Phi sub m dt.
And so there's Faraday Lenz's law,
slightly more formalized.
