weber vā´bər, wē–, wĕb´ər [key] [for W. E. Weber ], abbr. Wb, unit of magnetic flux in the mks system of weights and measures; 1 Wb is equal to 1 volt-second. The weber per square meter, called the tesla [for Nikola Tesla ], abbr. T, is the unit of magnetic flux density, which is a measure of the strength of a magnetic field in a given region. See electric and magnetic units .

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