JEE Main 202324 Jan, Morning shiftPhysicsEasyElectromagnetic Induction and Alternating Currents149× since 2002
A conducting circular loop of radius cm is placed perpendicular to a uniform magnetic field of 0.5 T. The magnetic field is decreased to zero in 0.5 s at a steady rate. The induced emf in the circular loop at 0.25 s is :