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单词 Flux line
释义

Flux line

英语百科

Field line

The figure at left shows the electric field lines of two equal positive charges. The figure at right shows the electric field lines of a dipole.
Iron filings arrange themselves so as to approximately depict some magnetic field lines. The magnetic field is created by a permanent magnet.

A field line is a locus that is defined by a vector field and a starting location within the field. Field lines are useful for visualizing vector fields, which are otherwise hard to depict. Note that, like longitude and latitude lines on a globe, or topographic lines on a topographic map, these lines are not physical lines that are actually present at certain locations; they are merely visualization tools.

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更新时间:2025/6/23 3:48:40