A conducting rod of length 2l is rotating with constant angular speed w about its perpendicular bisector. A uniform magnetic field \[\overrightarrow{B}\] exists parallel to the axis of rotation. The e.m.f. induced between two ends of the rod is [MP PET 2001]

• A.            Bwl2                                         
• B.            \[\frac{1}{2}B\omega {{l}^{2}}\]
• C.            \[\frac{1}{8}B\omega {{l}^{2}}\]                                      
• D.            Zero