{"product_id":"b0g357g46v","title":"Principle and Structure Model of Electric Motor, Electromagnetic Demonstration, Physics Teaching Instrument Electric Motor Principle Explainer Educational Science Model Physical Experiment","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eThe product consists of a base, a closed hoop, an electromagnet, a pole piece, an armature, a commutator, a rotating shaft, a brush, a rocker, a handle, and the like.\u003c\/li\u003e\n\u003cli\u003eThe closed iron ring and the pole piece are made of iron plate with a thickness of about 3mm. The width of the iron ring is about 75mm and the outer diameter is about φ180mm. The iron ring and the pole piece are painted with red and blue paint.\u003c\/li\u003e\n\u003cli\u003eThe electromagnet is wound on the iron core by QZ high-strength enameled wire. The two electromagnet coils are connected in series with each other. The armature is a rectangular multi-turn coil with a coil size of about 140×70mm. Both ends of the coil are made of red and blue tape. Bandaging.\u003c\/li\u003e\n\u003cli\u003eThe commutator is a combined current and reversing device consisting of two combined copper rings with a size of φ22×30mm; the rotating shaft is made of φ8mm round steel and has a length of about 150mm; the brush is made of tin bronze of δ0.3mm. Film production, length 80mm, width 7mm.\u003c\/li\u003e\n\u003cli\u003eDemonstrate DC motor: stator and rotor series excitation, add 4V to 16V voltage, variable speed; stator and rotor are excited, add 10V to 6V voltage, variable speed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"BrightMinds","offers":[{"title":"Default Title","offer_id":47690080256084,"sku":"SPH-B0G357G46V","price":176.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/3590\/1780\/files\/417hrg1YavL._AC_SL1500.jpg?v=1789644909","url":"https:\/\/learnbrightminds.com\/products\/b0g357g46v","provider":"BrightMinds","version":"1.0","type":"link"}