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Available in 10 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-10" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">10 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%BA%D9%86%D8%A7%D8%B7%D9%8A%D8%B3_%D8%AB%D9%86%D8%A7%D8%A6%D9%8A_%D8%A7%D9%84%D8%A3%D9%82%D8%B7%D8%A7%D8%A8" title="مغناطيس ثنائي الأقطاب – Arabic" lang="ar" hreflang="ar" data-title="مغناطيس ثنائي الأقطاب" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Imant_dipolar" title="Imant dipolar – Catalan" lang="ca" hreflang="ca" data-title="Imant dipolar" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Dipolmagnet" title="Dipolmagnet – German" lang="de" hreflang="de" data-title="Dipolmagnet" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Im%C3%A1n_dipolar" title="Imán dipolar – Spanish" lang="es" hreflang="es" data-title="Imán dipolar" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Aimant_dipolaire" title="Aimant dipolaire – French" lang="fr" hreflang="fr" data-title="Aimant dipolaire" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%A6%E0%A5%8D%E0%A4%B5%E0%A4%BF%E0%A4%A7%E0%A5%8D%E0%A4%B0%E0%A5%81%E0%A4%B5%E0%A5%80_%E0%A4%9A%E0%A5%81%E0%A4%AE%E0%A5%8D%E0%A4%AC%E0%A4%95" title="द्विध्रुवी चुम्बक – Hindi" lang="hi" hreflang="hi" data-title="द्विध्रुवी चुम्बक" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/%C3%8Dm%C3%A3_dipolar" title="Ímã dipolar – Portuguese" lang="pt" hreflang="pt" data-title="Ímã dipolar" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%94%D0%B8%D0%BF%D0%BE%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9_%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82" title="Дипольный магнит – Russian" lang="ru" hreflang="ru" data-title="Дипольный магнит" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Dipol_m%C4%B1knat%C4%B1s" title="Dipol mıknatıs – Turkish" lang="tr" hreflang="tr" data-title="Dipol mıknatıs" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%94%D0%B8%D0%BF%D0%BE%D0%BB%D1%8C%D0%BD%D0%B8%D0%B9_%D0%BC%D0%B0%D0%B3%D0%BD%D1%96%D1%82" title="Дипольний магніт – Ukrainian" lang="uk" hreflang="uk" data-title="Дипольний магніт" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1227285#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" 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id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" 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.hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="/wiki/Magnetic_dipole" title="Magnetic dipole">magnetic dipole</a>.</div> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Simplest type of magnet</div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Dipole_magnet" title="Special:EditPage/Dipole magnet">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Dipole+magnet%22">"Dipole magnet"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Dipole+magnet%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Dipole+magnet%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Dipole+magnet%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Dipole+magnet%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Dipole+magnet%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">January 2021</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:VFPt_cylindrical_magnet_thumb.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/VFPt_cylindrical_magnet_thumb.svg/220px-VFPt_cylindrical_magnet_thumb.svg.png" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/VFPt_cylindrical_magnet_thumb.svg/330px-VFPt_cylindrical_magnet_thumb.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0c/VFPt_cylindrical_magnet_thumb.svg/440px-VFPt_cylindrical_magnet_thumb.svg.png 2x" data-file-width="220" data-file-height="165" /></a><figcaption>Magnetic field of a simple bar magnet</figcaption></figure> <p>A <b>dipole magnet</b> is the simplest type of <a href="/wiki/Magnet" title="Magnet">magnet</a>. It has two poles, one north and one south. Its magnetic <a href="/wiki/Field_line" title="Field line">field lines</a> form simple closed loops which emerge from the north pole, re-enter at the south pole, then pass through the body of the magnet. The simplest example of a dipole magnet is a <i>bar magnet</i>.<sup id="cite_ref-hyperp_1-0" class="reference"><a href="#cite_note-hyperp-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Dipole_magnets_in_accelerators">Dipole magnets in accelerators</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dipole_magnet&action=edit&section=1" title="Edit section: Dipole magnets in accelerators"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Hetdipole.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Hetdipole.jpg/250px-Hetdipole.jpg" decoding="async" width="250" height="170" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Hetdipole.jpg/375px-Hetdipole.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Hetdipole.jpg/500px-Hetdipole.jpg 2x" data-file-width="600" data-file-height="409" /></a><figcaption>Dipole magnet from the <a href="/wiki/Advanced_Photon_Source" title="Advanced Photon Source">Advanced Photon Source</a></figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:ICP-SFMS_Magnet_1.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/ICP-SFMS_Magnet_1.JPG/250px-ICP-SFMS_Magnet_1.JPG" decoding="async" width="250" height="333" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/ICP-SFMS_Magnet_1.JPG/375px-ICP-SFMS_Magnet_1.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/ICP-SFMS_Magnet_1.JPG/500px-ICP-SFMS_Magnet_1.JPG 2x" data-file-width="2976" data-file-height="3968" /></a><figcaption>Dipole magnet of a plasma mass spectrometer</figcaption></figure> <p>In <a href="/wiki/Particle_accelerator" title="Particle accelerator">particle accelerators</a>, a <b>dipole magnet</b> is the <a href="/wiki/Electromagnet" title="Electromagnet">electromagnet</a> used to create a homogeneous <a href="/wiki/Magnetic_field" title="Magnetic field">magnetic field</a> over some distance. Particle motion in that field will be circular in a plane that is perpendicular to the field and <a href="/wiki/Collinear" class="mw-redirect" title="Collinear">collinear</a> to the direction of particle motion, and free in the direction orthogonal to it. Thus, a particle injected into a dipole magnet will travel on a circular or <a href="/wiki/Helix" title="Helix">helical</a> trajectory. By adding several dipole sections on the same plane, the bending radial effect of the beam increases. </p><p>In <a href="/wiki/Accelerator_physics" title="Accelerator physics">accelerator physics</a>, dipole magnets are used to realize <i>bends</i> in the design trajectory (or 'orbit') of the particles, as in circular accelerators. Other uses include: </p> <ul><li>Injection of particles into the accelerator</li> <li>Ejection of particles from the accelerator</li> <li>Correction of <a href="/wiki/Orbit" title="Orbit">orbit</a> errors</li> <li>Production of <a href="/wiki/Synchrotron_radiation" title="Synchrotron radiation">synchrotron radiation</a></li></ul> <p>The force on a charged particle in a particle accelerator from a dipole magnet can be described by the <a href="/wiki/Lorentz_force" title="Lorentz force">Lorentz force</a> law, where a charged particle experiences a force of </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {F} =q\mathbf {E} +q\mathbf {v} \times \mathbf {B} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">F</mi> </mrow> <mo>=</mo> <mi>q</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">E</mi> </mrow> <mo>+</mo> <mi>q</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> <mo>×</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">B</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {F} =q\mathbf {E} +q\mathbf {v} \times \mathbf {B} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ccc7325732c56e5caeacd2005cd803c9ed5e9d8d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:17.67ex; height:2.509ex;" alt="{\displaystyle \mathbf {F} =q\mathbf {E} +q\mathbf {v} \times \mathbf {B} }"></span></dd></dl> <p>(in <a href="/wiki/International_System_of_Units" title="International System of Units">SI units</a>). In the case of a particle accelerator dipole magnet, the charged particle beam is bent via the cross product of the particle's velocity and the magnetic field vector, with direction also being dependent on the charge of the particle. </p><p>The amount of force that can be applied to a charged particle by a dipole magnet is one of the limiting factors for modern <a href="/wiki/Synchrotron" title="Synchrotron">synchrotron</a> and <a href="/wiki/Cyclotron" title="Cyclotron">cyclotron</a> proton and ion accelerators. As the energy of the accelerated particles increases, they require more force to change direction and require larger <b>B</b> fields to be steered. Limitations on the amount of <b>B</b> field that can be produced with modern dipole electromagnets require synchrotrons/cyclotrons to increase in size (thus increasing the number of dipole magnets used) to compensate for increases in particle velocity. In the largest modern synchrotron, the <a href="/wiki/Large_Hadron_Collider" title="Large Hadron Collider">Large Hadron Collider</a>, there are 1232 main dipole magnets used for bending the path of the particle beam, each weighing 35 metric tons.<sup id="cite_ref-CERN-MAG_2-0" class="reference"><a href="#cite_note-CERN-MAG-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Other_uses">Other uses</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dipole_magnet&action=edit&section=2" title="Edit section: Other uses"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Other uses of dipole magnets to deflect moving particles include isotope mass measurement in <a href="/wiki/Mass_spectrometry" title="Mass spectrometry">mass spectrometry</a>, and particle momentum measurement in <a href="/wiki/Particle_physics" title="Particle physics">particle physics</a>. </p><p>Such magnets are also used in traditional televisions, which contain a <a href="/wiki/Cathode-ray_tube" title="Cathode-ray tube">cathode-ray tube</a>, which is essentially a small <a href="/wiki/Particle_accelerator" title="Particle accelerator">particle accelerator</a>. Their magnets are called <i>deflecting coils</i>. The magnets move a single spot on the screen of the TV tube in a controlled way all over the screen. </p> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:VFPt_flat_magnets_gap.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/VFPt_flat_magnets_gap.svg/250px-VFPt_flat_magnets_gap.svg.png" decoding="async" width="250" height="250" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/VFPt_flat_magnets_gap.svg/375px-VFPt_flat_magnets_gap.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/VFPt_flat_magnets_gap.svg/500px-VFPt_flat_magnets_gap.svg.png 2x" data-file-width="800" data-file-height="800" /></a><figcaption>Magnetic field of a cylindrical dipole magnet with a gap of near-constant field in the center. The same field configuration is obtained from two stacked current loops.</figcaption></figure> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dipole_magnet&action=edit&section=3" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Accelerator_physics" title="Accelerator physics">Accelerator physics</a></li> <li><a href="/wiki/Beam_line" class="mw-redirect" title="Beam line">Beam line</a></li> <li><a href="/wiki/Cyclotron" title="Cyclotron">Cyclotron</a></li> <li><a href="/wiki/Electromagnetism" title="Electromagnetism">Electromagnetism</a></li> <li><a href="/wiki/Linear_particle_accelerator" title="Linear particle accelerator">Linear particle accelerator</a></li> <li><a href="/wiki/Particle_accelerator" title="Particle accelerator">Particle accelerator</a></li> <li><a href="/wiki/Quadrupole_magnet" title="Quadrupole magnet">Quadrupole magnet</a></li> <li><a href="/wiki/Sextupole_magnet" title="Sextupole magnet">Sextupole magnet</a></li> <li><a href="/wiki/Multipole_magnet" title="Multipole magnet">Multipole magnet</a></li> <li><a href="/wiki/Storage_ring" title="Storage ring">Storage ring</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dipole_magnet&action=edit&section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-hyperp-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-hyperp_1-0">^</a></b></span> <span class="reference-text">["Bar Magnet" hyperphysics; <a rel="nofollow" class="external free" href="http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/elemag.html">http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/elemag.html</a>]</span> </li> <li id="cite_note-CERN-MAG-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-CERN-MAG_2-0">^</a></b></span> <span class="reference-text">["Pulling together: Superconducting electromagnets" CERN; <a rel="nofollow" class="external free" href="https://home.cern/science/engineering/pulling-together-superconducting-electromagnets">https://home.cern/science/engineering/pulling-together-superconducting-electromagnets</a>]</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dipole_magnet&action=edit&section=5" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Commons-logo.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> Media related to <a href="https://commons.wikimedia.org/wiki/Category:Dipole_magnet" class="extiw" title="commons:Category:Dipole magnet">Dipole magnet</a> at Wikimedia Commons</li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; 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