Magnetic Fields of Force: An Exposition of the Phenomena of

magnetic field   1 Scalar Potential for the Magnetic Field 25 2 Basics of Spherical Harmonics 26 3 Application of Spherical Harmonics to the Earth's Magnetic Field The north and south magnetic poles have opposite positive and negative polarities, like a bar magnet The invisible lines of the magnetic field

Magnetic field strength, also called magnetic field intensity, is sometimes measured in oersted rather than Am The oersted is part of the Gaussian system A current in a magnetic field experiences a force given by the equation F = I l × B or F = IlB sin θ, where l is the length of the wire,

In the Coulomb case, the field points directly toward or away from the point charge Put another way, if the source charge is at the origin, Learn about magnetic field patterns, spinning magnets in a coil of wire generates electricity, and that transformers change the size of alternating voltage