How can I measure back EMF?

Question

Say I had a coil made of 16awg, 200 turns, 5 layers, (maybe that dosn't matter) and hit it with 400vdc at 10a for .5 sec. Could I physically measure the back emf when the field colapses? What if I used an ac current (say, 100 Hz) with the same setup?

Answer 1

Sure. An oscilloscope ought to do the trick.