{"product_id":"electromagnet","title":"Philip Harris Electromagnet","description":"\u003cp\u003eA powerful electromagnet comprising a 'U' shaped soft iron core 100mm x 65mm overall. Formed from a 16mm diameter bar. The windings are of 0.9mm enamelled copper wire wound on insulation bobbins, connected in series and provided with 4mm sockets.\u003c\/p\u003e\u003cp\u003eThe ends of the core are carefully ground to provide optimum magnetic contact with the armature, which is also ground flat.\u003c\/p\u003e\u003cp\u003eWinding resistance is approximately 0.5Ω\u003c\/p\u003e\u003cp\u003eA force of about 75N is required to pull the armature away from the core when 1A is flowing through the windings.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRecommended Current: 5A.\u003c\/li\u003e\n\u003cli\u003eMaximum Current: 8A\u003c\/li\u003e\n\u003cli\u003eInput Voltage: 4-6V\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003ca\u003eLearning Outcomes\u003c\/a\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003e\u003cstrong\u003eKey Stage 3 Physics - Electricity and Electromagnetism: \u003c\/strong\u003e\u003c\/em\u003eThe magnetic effect of a current, electromagnets, DC motors (principles only).   \u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003e\u003cstrong\u003eKey Stage 4 Physics – Forces: \u003c\/strong\u003e\u003c\/em\u003eForces and fields: electrostatic, magnetic, gravity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003e\u003cstrong\u003eKey Stage 4 Physics - Magnetism and Electromagnetism: \u003c\/strong\u003e\u003c\/em\u003eMagnetism and electromagnetism.  Exploring the magnetic fields of permanent and induced magnets, and the Earth’s magnetic field, using a compass.  Magnetic effects of currents, how solenoids enhance the effect.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Philip Harris","offers":[{"title":"Default Title","offer_id":51274682368283,"sku":"E8H26321","price":22.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0915\/4363\/4203\/files\/philip-harris-electromagnet-4693935.jpg?v=1773594015","url":"https:\/\/abcschoolsupplies.co.uk\/products\/electromagnet","provider":"ABC School Supplies ","version":"1.0","type":"link"}