A metallic rod of \'L\' length is rotated with angular frequency of \'w\' with one end hinged at the
Channel: Doubtnut
Date: 2020-01-19

A metallic rod of \'L\' length is rotated with angular frequency of \'w\' with one end hinged at the centre and the other end at the circumference of a circular metallic ring of radius L, about an axis passing through the centre and perpendicular to the plane of the ring. A constant and uniform magnetic field B parallel to the axis is present everywhere. Deduce the expression for the emf between the centre and the metallic ring.