I want to start out using a lecture given at MIT. Electrons are one of two colors. Black or white. Electrons are either hard or soft. The ratio of white to black is 50 percent for each. Hard electrons match soft electrons in also being 50 percent; I have not yet finished the lecture. I am already thinking of important question in my opinion. EMF supposedly is = to Volts. I was trained in physics and electronics with that the case. I now learn (not in the video) that EMF is not = to Volts. So is the output of white electrons equal to black electrons? Same with hard and soft electrons. Is there a difference in measurements of EMF? Now you can make use of this video.
Unfortunately, I'm not educated enough to know about black and white electrons. But, if what you learned before doesn't fit what it is now, well, then, perhaps you should study this stuff again. Recent discoveries in Physics must have trickled down from discovery to classroom.
Electrons aren't literally black, white, soft or hard and why are you mixing EMF with quantum mechanics! The lecturer is using those terms in order to picturize different properties such as spin of an electron as an introduction to quantum theory such as the Uncertainty Principle. And EMF is measured in V/m not volts.
That lesson is known around: the introduction is a phylosophical approach to make the student understand [grasp] something. He imagines that the entity e[electron] has got only two properties color [white or black], hardness [hard or soft]. Nothing else. Then he builds up an imaginary chain of boxes with one entry and two exits to explain the Uncertainty Principle. Even if he was introducing the quantum superimposition.