A horizontal rod of mass 10 gm and length 10 cm is placed on a smooth plane inclined at an angle of \[60{}^\circ \] with the horizontal, with the length of the rod parallel to the edge of the inclined plane. A uniform magnetic field of induction B is applied vertically downwards. If the current through the rod is 1.73 ampere, then the value of B for which the rod remains stationary on the inclined plane is

• A.            1.73 Tesla                              
• B.            \[\frac{1}{1.73}\] Tesla
• C.            1 Tesla                                    
• D.            None of the above