{"product_id":"cathode-ray-electron-tube-physics-teaching-equipment-suitable-for-students-to-use-in-classroom-teaching-in-the-laboratory","title":"Cathode Ray Electron Tube, Physics Teaching Equipment, Suitable for Students to Use in Classroom Teaching in The Laboratory","description":"1. Straightin cathode ray tube: Demonstrate the phenomenon that the cathode ray moves in a straight line and can be blocked by metal.\n2. Magnetic field effect cathode ray tube: Demonstrates the phenomenon that the ray is deflected in the magnetic field, indicating that the cathode ray is a charged particle stream emitted from the cathode.\n3. Mechanical effect polar ray tube: Demonstrates the phenomenon that the cathode ray causes mechanical motion of the object, indicating that the cathode ray has momentum and energy.\n4. Electrostatic effect cathode ray tube: Demonstrates the phenomenon that the cathode ray deflects in the electric field, which proves that the cathode ray is a negatively charged particle stream (ie, electron flow).","brand":"mickcara","offers":[{"title":"Default Title","offer_id":44329186164873,"sku":"8418157948694","price":111.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0365\/2131\/2393\/files\/4aa7y.jpg?v=1750317563","url":"https:\/\/mickcara.com\/fr\/products\/cathode-ray-electron-tube-physics-teaching-equipment-suitable-for-students-to-use-in-classroom-teaching-in-the-laboratory","provider":"mickcara","version":"1.0","type":"link"}