a ccording to faraday's law of electromagnetic induction, a time-varying magnetic flux φ penetrating a loop induces an electromotive force (emf)-commonly notated ε-in the loop, such that dt (a) express eq. (1) in integral form in terms of e and b fields. (b) express eq. (1) in differential form in terms of e and b fields. in both cases explain in words the meaning of your mathematical expressions and all symbols that appear in them.