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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Faraday-Waage</span></h1>
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<p>Die <b>Faraday-Waage</b>, benannt nach <a href="Michael_Faraday" title="Michael Faraday">Michael Faraday</a>, wird benutzt, um die <a href="Magnetische_Suszeptibilit%C3%A4t" title="Magnetische Suszeptibilität">magnetische Suszeptibilität</a> <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \chi _{\text{m}}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>χ<!-- χ --></mi>
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<mtext>m</mtext>
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<annotation encoding="application/x-tex">{\displaystyle \chi _{\text{m}}}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/7f4bcf4914018c9ff79b32d50a5cb44d225b3b75.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.056ex; height:2.009ex;" alt="{\displaystyle \chi _{\text{m}}}" loading="lazy"></span> zu messen.
</p><p>Dazu wird die Probe eines <a href="Paramagnetismus" title="Paramagnetismus">para-</a> oder <a href="Diamagnetismus" title="Diamagnetismus">diamagnetischen</a> Stoffs in ein <a href="Gradient_(Mathematik)" title="Gradient (Mathematik)">Gradienten</a>-<a href="Magnetfeld" class="mw-redirect" title="Magnetfeld">Magnetfeld</a> gebracht und die <a href="Kraft" title="Kraft">Kraft</a> gemessen, mit der diese Probe aus dem Magnetfeld hereingezogen oder hinausgedrückt wird. Auf diese Weise kann die <a href="Magnetisierung" title="Magnetisierung">Magnetisierung</a> <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\vec {M}}}">
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<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
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<mi>M</mi>
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<annotation encoding="application/x-tex">{\displaystyle {\vec {M}}}</annotation>
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</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/b903a0e453efca49cfda6ba33edb465de21a6b1d.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.442ex; height:2.843ex;" alt="{\displaystyle {\vec {M}}}" loading="lazy"></span> gemessen und daraus mit dem Magnetfeld <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\vec {H}}}">
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<mrow class="MJX-TeXAtom-ORD">
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<mrow class="MJX-TeXAtom-ORD">
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<mi>H</mi>
<mo stretchy="false">→<!-- → --></mo>
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<annotation encoding="application/x-tex">{\displaystyle {\vec {H}}}</annotation>
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</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/17aa4b2a53bc35011373e1bfe86baf779b521329.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.064ex; height:2.843ex;" alt="{\displaystyle {\vec {H}}}" loading="lazy"></span> die Suszeptibilität ermittelt werden:
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \chi _{\text{m}}={\frac {|{\vec {M}}|}{|{\vec {H}}|}}.}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>χ<!-- χ --></mi>
<mrow class="MJX-TeXAtom-ORD">
<mtext>m</mtext>
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<mo>=</mo>
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<mo stretchy="false">|</mo>
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<mi>M</mi>
<mo stretchy="false">→<!-- → --></mo>
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<mo stretchy="false">|</mo>
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<mrow class="MJX-TeXAtom-ORD">
<mo stretchy="false">|</mo>
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<mrow class="MJX-TeXAtom-ORD">
<mrow class="MJX-TeXAtom-ORD">
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<mi>H</mi>
<mo stretchy="false">→<!-- → --></mo>
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<mo>.</mo>
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<annotation encoding="application/x-tex">{\displaystyle \chi _{\text{m}}={\frac {|{\vec {M}}|}{|{\vec {H}}|}}.}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/328983f7b78dafdea5484fe08e3e9ed73f4fad92.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -3.171ex; width:11.374ex; height:7.509ex;" alt="{\displaystyle \chi _{\text{m}}={\frac {|{\vec {M}}|}{|{\vec {H}}|}}.}" loading="lazy"></span></dd></dl>
<p>Verwendet werden diese Waagen etwa zur Messung von magnetischen Eigenschaften bei der Entwicklung von <a href="Supraleiter" title="Supraleiter">supraleitenden</a> Materialien.
</p>
<div class="mw-heading mw-heading2"><h2 id="Siehe_auch">Siehe auch</h2></div>
<ul><li><a href="Magnetische_Waage" title="Magnetische Waage">Magnetische Waage</a></li></ul></div><!--htdig_noindex--><div><div class="zim-footer">
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