{"product_id":"faradax-faraday-s-law-physics-mug","title":"Faradax – Faraday’s Law Physics Mug","description":"\u003cp\u003eHow does a generator make electricity? Faradax answers change with change. Faraday’s law says a changing magnetic flux through a loop induces a voltage, E = −dΦB\/dt. The minus sign is Lenz’s law: the induced current opposes the change. Generators, transformers and induction hobs all rely on it. Pixel-art black ceramic mug in 11 or 15 oz; equation, symbols and sources in the physics panel below.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50420031389799,"sku":"11608435883195632095","price":21.99,"currency_code":"USD","in_stock":true},{"title":"15oz","offer_id":50420031422567,"sku":"32884286247479053160","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/faradax_closeup_2400.png?v=1791690271","url":"https:\/\/pixelatedphysics.com\/products\/faradax-faraday-s-law-physics-mug","provider":"Pixelated Physics","version":"1.0","type":"link"}