how magnetic circuits work???? hi everyone there...this is my first post and i'm here to find d solution to a very basic but confusing doubt!!! in all magnetic circuits such as a transformer (consider single phase operating at knee point), if we apply a sinusoidal voltage source, the flux is taken to be sinusoidal and the current waveform as distorted. (all books say this without any explanation ) but as far as my thinking goes, the current should be sinusoidal and the flux waveform should be dependent on the operating point on the B-H curve. ...why is it not this way????