A metallic rod completes its circuit as ...

A metallic rod completes its circuit as shown in the figure. The circuit is normal to a magnetic field of `B=0.15` tesla. If the resistances of the rod is `3Omega` the force required to move the rod with a constant velocity of `2m//sec` is-

`3.75xx10^(-3)N`

`3.75xx10^(-2)N`

`3.75xx10^(-3)N`

`3.75xx10^(-4)N`

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