{"product_id":"united-scientific®-tangent-galvanometer","title":"United Scientific® Tangent Galvanometer","description":"Classic demonstration of how a current loop generates a magnetic field. Two coils of insulated wire, with 5 and 10 turns respectively, are wound around a 6\" diameter plastic ring. The ring is mounted on a plastic base with 3 binding posts that allow connection to five, ten, or fifteen turns of wire. A magnetic compass (included) can be placed on the base to observe and measure deflection of the compass. An activity guide is included. Power source and connecting wires not included.","brand":"United Scientific Supplies","offers":[{"title":"Default Title","offer_id":49962281271573,"sku":"USSTNGV01","price":56.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/TNGV01_20Tangent_20Galvanometer.jpg?v=1781069939","url":"https:\/\/unitedsupplycorp.com\/products\/united-scientific%c2%ae-tangent-galvanometer","provider":"United Supply Corp.","version":"1.0","type":"link"}