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magnetic field
(redirected from magnetic field strength)

    Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.01 sec.

magnetic field

Region around a magnet, electric current, or changing electric field in which magnetic forces are observable. The field around a permanent magnet or wire carrying a steady direct current is stationary, while that around an alternating current or changing direct current is continuously changing. Magnetic fields are commonly represented by continuous lines of force, or magnetic flux, that emerge from north-seeking magnetic poles and enter south-seeking poles. The density of the lines indicates the magnitude of the field, the lines being crowded together where the magnetic field is strong. The SI unit for magnetic flux is the weber.

An invisible energy emitted by a magnet. Same as flux.
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Thanks to axial symmetry, the magnetic field offaxis, outside its sources, can be represented in terms of the magnetic field strength B(x, 0) along the axis:
Monte Carlo study of the abBA experiment: detector response and ... by Frlez, E. / Journal of Research of the National Institute of Standards and Technology
By varying the input current to the coils, exposure fields could be set anywhere from the ambient level to the maximum coil designed magnetic field strength of 5.
Magnetic-field-induced DNA strand breaks in brain cells of the rat by Singh, Narendra P. / Environmental Health Perspectives
Measuring the magnetic field strength and velocity of gas in the filaments' dark cores may reveal yet more details on how the sun got its spots.
Something new on the sun: innovative telescope homes in on sunspots by Cowen, Ron / Science News
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