Figure shows a ring of radius ‘a’ at t = 0, present in a uniform magnetic field B. The magnetic field is present everywhere parallel to the axis yy' . If ring starts rotating with an angular speed ω about axis yy', the induced emf in ring is
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Figure shows a ring of radius ‘a’ at t = 0, present in a uniform magnetic field B. The magnetic field is present everywhere parallel to the axis yy' . If ring starts rotating with an angular speed ω about axis yy', the induced emf in ring is