{"id":1032,"date":"2022-06-08T10:39:58","date_gmt":"2022-05-05T13:52:18","guid":{"rendered":"https:\/\/experiments.school\/?post_type=product&#038;p=1032"},"modified":"2022-06-30T12:50:06","modified_gmt":"2022-06-30T10:50:06","slug":"021-magnetic-field-lines","status":"publish","type":"product","link":"https:\/\/experiments.school\/en\/product\/021-magnetic-field-lines\/","title":{"rendered":"021 &#8211; Magnetic Field Lines"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<h2><strong>Basic experiment for magnetic field lines<\/strong><\/h2>\n<h2><strong>Visualization of a magnetic field (with iron powder)<\/strong><\/h2>\n<h2><strong>Magnetic field of a bar magnet<\/strong><\/h2>\n<h2>Introduction to:<\/h2>\n<p>Field concept, field lines, magnetic field<\/p>\n<p>https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/021.mp4<\/p>\n<h2>Material:<\/h2>\n<ul>\n<li>bar magnet<\/li>\n<li>iron powder (iron filings)<\/li>\n<li>Glass plate \/ Plexiglas plate \/ solid cardboard with a sheet of<span class=\"Apple-converted-space\">\u00a0 <\/span>paper above<\/li>\n<\/ul>\n<h2>Construction and implementation:<\/h2>\n<ul>\n<li>Place the glass plate over the magnet<\/li>\n<li>sprinkle the iron powder finely and evenly onto the glass plate from a height of 30-50 cm<\/li>\n<li>Lightly tap against the glass plate several times<\/li>\n<\/ul>\n<h2>Observation:<\/h2>\n<ul>\n<li>The iron powder arranges itself into a pattern that shows the magnetic field lines.<\/li>\n<li>In the vicinity of the magnet, the filings do not remain lying down, but are pulled to the poles. There they straighten up.<\/li>\n<\/ul>\n<h2>Explanation:<\/h2>\n<ul>\n<li>The iron filings are magnetized in the magnetic field and form chains of magnetic dipoles.<\/li>\n<li>These are aligned along the field lines.<\/li>\n<\/ul>\n<h2>Tips:<\/h2>\n<ul>\n<li>Attention: Do not bring iron filings directly onto the magnet, they are very hard to remove from there.<\/li>\n<li>Collecting the iron powder: wrap two layers of a paper towel around a magnet to collect the powder, then spread the towel flat over a jar (powder on the bottom side) and pull magnet upwards<\/li>\n<\/ul>\n<h2>Didactic potential:<\/h2>\n<ul>\n<li>The abstract term &#8220;magnetic field&#8221; is visualized.<\/li>\n<li>Differently shaped magnets have different magnetic fields: experiments with neodymium magnets<span class=\"Apple-converted-space\">\u00a0 <\/span>or a horseshoe magnet are worthwhile.<\/li>\n<li>With a powerful magnet and many iron filings, a three-dimensional field line image can also be generated.<\/li>\n<\/ul>\n","protected":false},"featured_media":751,"template":"","meta":[],"product_brand":[],"product_cat":[987,874],"product_tag":[],"class_list":{"0":"post-1032","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-6-magnetism-electromagnetism","7":"product_cat-b-electricity","8":"","9":"woocommerce-text-align-left","10":"woocommerce-image-align-center","12":"first","13":"instock","14":"shipping-taxable","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product\/1032","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/media\/751"}],"wp:attachment":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/media?parent=1032"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_brand?post=1032"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_cat?post=1032"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_tag?post=1032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}