physics·NCERT Class 12·Electromagnetic Induction
EM Induction (Lenz)
Medium+70 XP
Push a magnet into a coil and a current appears — pull it out and the current reverses. Lenz's law: nature always opposes the change. Try it in 3D.
›Faraday's law: emf = −dΦ/dt; Lenz's law gives the direction.
›Motional emf: ε = Bvl (conductor moving in B field).