B field around a wire的副本

Autor:cl, Chris Hamper

Shows how the field lines around a straight wire change with changing current. The density of field lines gives a measure of the strength of the magnetic field.

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Το Πυθαγόρειο θεώρημα

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Sustracción
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Cuadrado
Semejanza
Pitágoras o Teorema de Pitágoras