A 20 cm lang metallic rod is rotated with 210 rpm about an axis normal to the rod passing through its one end.The other end of the rod is in contact with a circular metallic ring.A constant and uniform magnetic field 0.2T parallel to the axis exists everywhere.The omf developed between the centre and the ring is _________mV
Take `pi`=22/7

A 2 m long metallic rod rotates with an angular frequency 200" rod "s^(-1) about on axis normal to the rod passing through its one end. The other end of the rod is in contact with a circular metallic ring. A constant megnetic field of 0.5 T parallel to axis exises everywhere. The emf developed between the centre and the ring is

A 1m long calculating rod rotates with an angular frequency of 400 rad s^(-1) an axis normal to the rod passing through its one one end. The other end of the rod is contact with a circular metallic ring. A constant magnetic field of 0.5 T parallel to the axis everywhere. Calculate the e.m.f. developed between the centre and the ring.

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.

A uniform metal rod is rotated in horizontal plane about a vertical axis passing through its end at uniform rate. The tension in the rod is

A metallic rod of 1 m length is rotated with a frequency of 50 rev//s , with on end hinged at the centre and the other end at the circumference of a circular metallic ring of radius 1 m, about an axis passing through the centre and perpendicular at to the plane of the ring. A constant uniform magnetic field of 1 T parallel to the axis is persent eveywhere. what is the e.m.f. between the centre and the metallic ring?