On this day in history, Columbus discoveredâ¦. the perfect meatball wink emoticon. Little known fact: Also on this day he discovered Spaghetti Warehouse and their $6 World Famous Spaghetti & Meatball Entree with sourdough bread and choice of soup or salad!
Relevance. Rating Newest Oldest. Best Answer: In a generator, residual magnetism, also known as 'remanence' or remanent flux, is due to the hysteresis of the magnetic material in the core. When the current is removed, the magnetic flux often remains at some non-zero value. This is a characteristic phenomenon of ferromagnetic materials.
This effect is a weak form of paramagnetism known as Pauli paramagnetism. The effect always competes with a diamagnetic response of opposite sign due to all the core electrons of the atoms. Stronger forms of magnetism usually require localized rather than itinerant electrons.