# Mechanics or what? - 2

Electricity and Magnetism Level 3

A horizontal metallic rod of resistance $$R$$ and of mass $$m$$ is free to slide on two vertical conducting rails as shown. The terminal speed of the rod is

Details and Assumptions:

• Uniform magnetic field intensity $$B$$ exist throughout the region and is normally inward.

• The length of the rod is $$L$$.

• The inductance of the inductor is $$M$$.

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