As shown in the figure a metal rod makes contact and complete the circuit. The circuit is perpendicular to the magnetic field with \[B=0.15\,tesla.\] If the resistance is \[3\,\Omega \], force needed to move the rod as indicated with a constant speed of \[2m/sec\] is [MP PET 1994]

• A.            \[3.75\times {{10}^{-3}}\]N   
• B.            \[3.75\times {{10}^{-2}}\,N\]
• C.            \[3.75\times {{10}^{2}}\,N\] 
• D.            \[3.75\times {{10}^{-4}}N\]