A metal conductor of length 1m rotates vertically about one of its ends at angular velocity 5 radians per second. If the horizontal component of earth's magnetic field is \[0.2\times {{10}^{-4}}T\], then the e.m.f. developed between the two ends of the conductor is [MP PMT 1992; AIEEE 2004]

• A.            \[5\ mV\]                              
• B.            \[5\times {{10}^{-4}}V\]
• C.            \[50\ mV\]                            
• D.            \[50\ \mu V\]