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The magnetic field of a small [note 6] straight magnet is proportional to the magnet's strength (called its magnetic dipole moment m). The equations are non-trivial and depend on the distance from the magnet and the orientation of the magnet.
magnetic field strength, the part of the magnetic field in a material that arises from an external current and is not intrinsic to the material itself. It is expressed as the vector H and is measured in units of amperes per metre.
Learn how to define and distinguish the magnetic field strength H from the magnetic field B in materials with different magnetic responses. Find out the units, formulas and examples of H and B.
Magnetic field strength is a measure of the intensity of a magnetic field in a given area of that field. Represented as H, magnetic field strength is typically measured in amperes per meter (A/m), as defined by the International System of Units (SI).
Learn how electric current produces a magnetic field and how to calculate its magnitude and direction using various laws and formulas. Explore the force on a current-carrying wire in a magnetic field and the right hand rules for magnetism.
The strength of the field of force, the magnetic field strength, or magnetizing force H, may be defined in terms of magnetic poles: one centimeter from a unit pole the field strength is one oersted.
Learn about magnetic fields, their sources, and how they interact with charge. Find out the definitions, formulas, and units of magnetic field strength and flux density.
