My understanding is that in a standard AC inductor the magnetic field in the core changes direction as the current through the primary coil alternates. What if the current through the primary coil was pulsed on and off but in one direction only?
It is still an alternating current that produces a changing magnetic filed that induces voltage in the secondary coil, but what happens to the magnetic field in the core? Would the secondary coil induce a magnetic field in the core the opposite direction to the field originally induced by the primary coil? Would the core still experience an alternating magnetic field, even though the primary coil current flows in on direction only?
My understanding of Lenz’s law is still a little shaky, and I am trying to understand how Lenz’s law would apply in this particular scenario. I feel like the secondary coil would induce a magnetic field in the opposite direction to the one induced by the primary coil, but I am not sure. (I am also not sure if I have not used the most fitting terms to describe magnetic field “directions”, but I hope people understand what I am clumsily trying to say!)