created on 02/01/98 - JLN Labs - last update on 02/01/98

Ok, now, I explain you how this experiment can be done with ONLY 3 components. This seems "crazy" and I suggest strongly you test it by yourself...

Take a high inductance coil with an soft iron core, my inductor has 0.55 Henry of inductance and a resistance of 27 ohms. The coil is connected to a 170V AC source (50Hz), the voltage is not critical, you need only to create a variable magnetic flux.

Connect two resistors (a 1 kohms and a 10 kohms) around this soft iron core like indicated in the diagram below. In my design I have glued these two resistances around a small cardboard tube (see the picture).

Send the AC current in the coil and measure the voltages with a simple scope, like this :

• The V1 voltage is measured between the points A and B on the left side of the coil

• The V2 voltage is measured between the points A and B on the right side of the coil

The crazy result is that the V2 voltage is greater than the V1 voltage between the same points A and B...