A horizontal metallic rod of mass $'m'$ and length $'l'$ is supported by two vertical identical springs of spring of spring constant $'K'$ each and natural length $l_0.$  A current $'i'$ is flowing in the rod in the direction shown. If the rod is in equilibrium then the length of each spring in this state is :-
  • A${l_0}\, + \,\frac{{ilB - mg}}{K}$
  • B${l_0}\, + \,\frac{{ilB - mg}}{2K}$
  • C${l_0}\, + \,\frac{{ mg - ilB}}{2K}$
  • D${l_0}\, + \,\frac{{ mg - ilB}}{K}$
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