EBook Vol1 - Magnetic Unit of measurement comment

Thread Starter


Joined Aug 16, 2011
It looks like a capacitor diagram has been included by mistake for magnetic one. Also the symbols for reluctance etc. have not been shown on the magnetic term definition section prior to be being used in a couple of formulae at the bottom.




Joined Mar 24, 2008
But wait . . . the fun is just beginning! Not only do we have more quantities to keep track of with magnetism than with electricity, but we have several different systems of unit measurement for each of these quantities. As with common quantities of length, weight, volume, and temperature, we have both English and metric systems. However, there is actually more than one metric system of units, and multiple metric systems are used in magnetic field measurements! One is called the cgs, which stands for Centimeter-Gram-Second, denoting the root measures upon which the whole system is based. The other was originally known as the mks system, which stood for Meter-Kilogram-Second, which was later revised into another system, called rmks, standing for Rationalized Meter-Kilogram-Second. This ended up being adopted as an international standard and renamed SI (Systeme International).

I would have to rate this as verified. It appears the illustration was put in the wrong place.