Basically what I'm asking is if free electrons cause a target material to generate a magnetic field and that if the electrons arrived in pulses, would the strength of the field fluctuate similarly.
Consider the following experimental setup: the front half of a klystron tube (the electron gun and resonent cavity) or perhaps a free electron laser, several different targets consisting of a highly conductive(metal) object, a possibly conductive object(salt or clay), and a non-conductive...