Hall Effect or Magnetic ring, in my blogs I have discussed both, and both of these devices detect magnetic fields. As you may know, from Maxwell’s General Theory of Electromagnetism, we discover that many professors struggle with making electromagnetism fun! Ok, that wasn’t the point, if you are not familiar with the General Theory of Electromagnetism, you live in a civilization that is based on the concepts laid down by the General Theory. If you are reading this on a computer, and I doubt that any of my blogs have been printed out, so that is a safe assumption you are.
For a more in-depth take a look at the General Theory of Electromagnetism, briefly they are, which look complicated, but in reality they are pretty easy to implement in the physical world. The integral symbol with the circle on it is a “closed” integral and first described by Stokes (not me, a distant relative):
Equations reference is: http://galileoandeinstein.physics.virginia.edu/more_stuff/Maxwell_Eq.html
Once you understand these equations well enough to wear them on at T-Shirt or talk about them at a dinner party, then you are taking this far too seriously.
Ok that is it for the funky equations. If you go into physics or electrical engineering, the will haunt your dreams, for everyone else, let’s more on to the next blog where we discuss how the Hall Effect Transistor and circuit works, as well as how to use it.