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.
FIND OUT MORE. Magnetism is what gives magnets their ability to attract objects made of iron or steel. A magnet creates around itself a region of space with special properties. This region is known as a MAGNETIC FIELD. When two magnets come near each other, their fields create forces that attract or repel. The Earth is itself a huge magnet, and the force its field exerts on other magnets makes them point in a northâsouth direction. This effect is used in the magnetic compass.