A conducting rod of length `2l` is rotating with constant angular speed `w` about its perpendicular bisector. A uniform magnetic field `B` exists parallel to the axis of rotation. The e.m.f. induced between two ends of the rod is

Options

A. zero
B. `B omega l^2`
C. `1/2 B omega l^2`
D. `1/8 B omega l^2`

Answer

A