{"product_id":"united-scientific®-hand-rule-demonstrator","title":"United Scientific® Hand Rule Demonstrator","description":"\u003cp\u003eVividly demonstrate the interaction of a magnet and an induced current. As electrons flow in a wire, they create a magnetic field. When this current-carrying wire is near a permanent magnet it causes magnetic repulsion and motion is created.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe apparatus works on 3V to 6 V DC and has a switch to cause a temporary current in the\u003cbr\u003e magnetic coil\u003c\/li\u003e\n\u003cli\u003eIncludes activity guide\u003c\/li\u003e\n\u003cli\u003eNote: power supply and galvanometer not included\u003c\/li\u003e\n\u003cli\u003eSize assembled: 7.5” x 5.5” x 11”\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"United Scientific Supplies","offers":[{"title":"Default Title","offer_id":49962348380437,"sku":"USSHANDEM","price":47.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/HANDEM_20Hand_20Rule_20Demonstrator.jpg?v=1781072904","url":"https:\/\/unitedsupplycorp.com\/products\/united-scientific%c2%ae-hand-rule-demonstrator","provider":"United Supply Corp.","version":"1.0","type":"link"}