Magnetic field

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Magnetic field

Post by chinhkuqn on Thu Nov 24, 2011 4:33 pm

Magnetic fieldA magnetic field is a mathematical description of the magnetic influence of electric currents and magnetic materials. The magnetic field at any given point is specified by both a direction and a magnitude (or strength); as such it is a vector field.[nb 1] The magnetic field is most commonly defined in terms of the Lorentz force it exerts on moving electric charges. There are two separate but closely related fields to which the name 'magnetic field' can refer: a magnetic B field and a magnetic H field.
Magnetic fields are produced by moving electric charges and the intrinsic magnetic moments of elementary particles butt

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