Relationships among the magnetic properties of magnet steels and permanent magnets

OPEN CIRCUIT remanence of magnet steels is the magnetic induction ab the magnetic equator of a permanent magne; with no external magnetizing or demagnetizing force. A new relationship has been found ecamecting the open circuit remanence of a permanent magnet witn the factors determining its value. By plotting the ratio of remanence to residual inducion as the ordinate, and using as the abscissa the ratio of the product magnet lengths times square root of coercive force to the product of equivalent diameter times the square root of residual induction, a curve is obtained which appear; to be general and valid for all kpids of magnet steel.