question_answer

A conducting rod of length l is falling with a velocity v perpendicular to a uniform horizontal magnetic field B. The potential difference between its two ends will be

A) \[2\,Blv\]                                            

B) \[Blv\]

C) \[\frac{1}{2}Blv\]                                             

D) \[{{B}^{2}}{{l}^{2}}{{v}^{2}}\]