A circular conducting loop of radius 20 cm and resistance 2 Ω is placed in a spatially uniform magnetic field whose magnitude varies with time as B(t) = 2t²+2t+3 tesla. The plane of the loop is perpendicular to the magnetic field. At t = 3 s, the induced current is α /50 A. Taking π = 22 / 7, find α.

Physics · Electromagnetic Induction · faradays law and question based on it

JEE Mains 2026 5 April Evening Shift

A circular conducting loop of radius 20 cm and resistance 2 Ω is placed in a spatially uniform magnetic field whose magnitude varies with time as B(t) = 2t²+2t+3 tesla. The plane of the loop is perpendicular to the magnetic field. At t = 3 s, the induced current is α /50 A. Taking π = 22 / 7, find α.