No Battery, But The Electrons Move: Induction in 3D

Описание: A magnet falls through a copper loop and a current appears out of nowhere. No battery, no contact. We build the whole causal chain in 3D: the magnet's field as a real volume, flux through a tilting surface, Faraday's law read straight off four synchronized live graphs, Lenz's law in the round, and the circulating electric field that actually pushes the electrons. Every number is computed from one exact model, peak emf 0.400 mV and peak current 2.00 mA.

#physics #electromagnetism #faraday #lenzlaw #induction #emf #magneticflux #physicsclass #stem #3danimation