I agree with turtlevette that the effects of an EMP attack are largely exaggerated.
Transformers and anything with a wound up length of wire, aka coils, are the most sensitive to the EMP because they already use the electromagnetic field. But even then, if you think of a coil pack for a spark plug, it steps up the voltage from 12V to few thousands volts and is heavily insulated. The EM signal would have to be extremely strong to short out the coils.
Other electronic components like resistors, microprocessors, transistors, diods, etc. maybe with the exception to the capacitors are not all too sensitive because the electro-magnetic field would have to be very strong to induce voltage/current hight enough to burn out the components. If that flow of electrons is not present, the electro-magnetic field itself cannot burn anything out.
And how do you induce voltage using an EM field? In a length of wire, wrapped around a piece of metal.
The whole notion that an EMP attack would "fry" all electronics is simply foolish.