That was my initial assumption too. But then I got to thinking that since there IS a complete magnetic loop (though with a huge air gap that creates a reluctance nearly equivalent to just air) then there might be some way that there would be a choking effect. I just don't know how to figure the inductive reactance based on a magnetic circuit's characteristics..except for the text book examples for constructing filter coils. I don't know if there has to be eddy current paths along with the magnetic loops in order for there to be a large inductive reactance. Logic informs me that since there can be inductive reactance for even a straight piece of wire, then partially enclosing it in strut would certainly increase that reactance..but by how much?
