<?xml version="1.0" encoding="UTF-8"?>
<term>
  <id>00539</id>
  <title>average current density</title>
  <longtitle>IUPAC Gold Book - average current density</longtitle>
  <doi>10.1351/goldbook.A00539</doi>
  <code>A00539</code>
  <status>current</status>
  <mentioned><em>mentioned</em>: local current density</mentioned>
  <definitions>
    <item>
      <id>1</id>
      <text>The average current density, \(j\), is defined by \[j = A^{-1}\ \int _{A}j_{x}\ \rm{d}A\] where \(A\) is the electrode area, \(j_{x}\) is the local current density and \(\rm{d}A\) is an infinitesimal surface element.</text>
      <links>
        <item>
          <term>current density</term>
          <url>https://goldbook.iupac.org//terms/view/C01452</url>
        </item>
      </links>
      <sources>
        <item>PAC, 1981, 53, 1827. 'Nomenclature for transport phenomena in electrolytic systems' on page 1836 (https://doi.org/10.1351/pac198153101827)</item>
      </sources>
    </item>
  </definitions>
  <altoutputs>
    <html>https://goldbook.iupac.org/terms/view/A00539/html</html>
    <json>https://goldbook.iupac.org/terms/view/A00539/json</json>
    <plain>https://goldbook.iupac.org/terms/view/A00539/plain</plain>
  </altoutputs>
  <citation>Citation: 'average current density' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.A00539</citation>
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  <disclaimer>The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.</disclaimer>
  <accessed>2026-07-16T06:48:38+00:00</accessed>
</term>
