Magnetic lines of force are used to represent the strength and orientation of a magnetic field. Sometimes referred to as magnetic field lines, this concept provides a useful way to represent various components of the mag... More »

The magnetic field of the planet changes the location of its poles and the polarity over time. The rotation of the iron inner core of Earth causes the liquid outer core to rotate in turn, and they produce magnetic field ... More »

Scientists have hypothesized and made predictions about the cause of the Earth's magnetic fields, and the prevailing theory is that the Earth's magnetism originates from the planet's center, or core. Because scientists d... More » Science Physics

The technical definition of magnetic force is the mechanical force exerted from a magnetic field to a magnetic pole that is placed within that particular magnetic field. Magnetic force involves the simultaneous attractio... More »

A Hall probe is a sophisticated instrument used to measure magnetic field strength. It is a thin film that measures the transverse voltage when it is placed in the magnetic field. The Hall probe works on the Hall effect ... More »

The left-hand rule of magnetic polarity is a method of either determining the direction of charged particles after they enter a magnetic field or the way a simple motor works. The left-hand rule is also known as Fleming'... More »

Titanium is considered paramagnetic, as it has no standing magnetic field of its own, but it develops one in the presence of an externally applied magnetic field. According to the University of Maryland, titanium is able... More »