A wire 88cmlong bent into a circularloop is placed perpendicular to the magnetic field of flux density 2.5Wb/m(sq.).Within , 0.5s the loopis changed intoa square ofeachside 22cm, and flux density isincreased to 3Wb/m(sq).Calculatethevalueof emf induced .

Jitender Pal , 11 Years ago

Grade 9