{"product_id":"united-scientific®-lenzs-law-apparatus","title":"United Scientific® Lenz's Law Apparatus","description":"Demonstrate the principles of magnetic induction with the Lenz’s Law Apparatus. The central pointed support balances an aluminum arm that has two aluminum loops on the ends. One loop is solid while the other has a slit. When a magnet is brought near a metal loop it induces an opposing magnetic field.\n\nWhen the loop is incomplete, an induced current cannot be created. This causes the complete loop to experience motion, while the incomplete loop does not move. The device is sensitive enough to work with a variety of magnets (not included), but neodymium magnets yield the best results. Includes activity guide.\n\nApparatus measures 3” x 8” x 6” (7.6 cm x 20 cm x 15.2 cm).","brand":"United Scientific Supplies, Inc.","offers":[{"title":"Default Title","offer_id":49677725139221,"sku":"USSLENZLAW","price":20.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/lenzlaw-lenz-law.jpg?v=1767565030","url":"https:\/\/unitedsupplycorp.com\/products\/united-scientific%c2%ae-lenzs-law-apparatus","provider":"United Supply Corp.","version":"1.0","type":"link"}