How about two infinitely long solenoid coils wound in between another but with opposing currents? The net fields throughout space would be null as it is composed of the non-zero individual fields.
Hi, I have a question about destructive interference. Suppose I have two very closely spaced EM sources, e.g two RF emitters. At a point far away from the sources the arbitrarily orientated magnetic field due to source one is: B1(t)=sin(ωt) and source two: B2(t)=sin(ωt+pi) so the total field...