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Current density |
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Current density A vector quantity equal in magnitude to the instantaneous rate of flow of electric charge, perpendicular to a chosen surface, per unit area per unit time. If a wire of cross-sectional area A carries a current I, the current density J is I/A. The units of J in the rationalized meter-kilogram-second system are amperes per square meter. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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By contrast, ordinary household wiring carries current densities that reach only a few hundred amperes per square centimeter. the critical temperatures, current densities, and field strengths, along with the structure of the materials. In general, he noted, the City took areas where there were more vacant sites and rezoned to make it easier to develop with new residential, but at current densities, and in the historic areas, reduced densities and reduced the allowable envelopes. |
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