# Why are you in a hurry?

An arrangement of smooth pair of long conducting rails which are non resisting are joined to a charged capacitor. The rails are connected by a rod of mass $$M$$, length $$L$$, and Resistance $$R$$. A vertical Magnetic Field $$B$$ is established in the region. The rod starts moving due to the influence of the Magnetic Field.

What should be the mass of the rod $$M$$ (in mg) so that its Kinetic Energy in steady state is maximum?

Details and Assumptions:
$$\bullet L=1m$$
$$\bullet B=2T$$
$$\bullet C=1\mu F$$
$$\bullet R=1$$ohm
$$\bullet$$ The Rod is initially at rest
$$\bullet$$ The Magnetic Field is constant and uniform in nature

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