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A wire 88cm long bent into a circular loop is placed perpendicular to the magnetic field of flux density 2.5Wb/m(sq.). Within , 0.5s the loop is changed into a square of each side 22cm, and flux density is increased to 3Wb/m(sq). Calculate the value of emf induced .


A  wire  88cm  long bent into a circular loop is placed  perpendicular to the magnetic field of   flux density 2.5Wb/m(sq.).  Within , 0.5s the loop  is changed  into a square of each side 22cm, and flux density  is increased to 3Wb/m(sq). Calculate the value of emf induced .                


Grade:9

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