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A metallic ring of field. If z is the ra...

A metallic ring of field. If z is the radius l (ring being horizontal is falling under gravity in a region haivng a magnetic field. If z is the vertical direction, the z-component of magnetic field is `B_(z) = B_(0) (1 + lambda z)`. If R the resistance of the ring and if the ring falls with a velocity `upsilon`, find the energy lost in the resistance If the ring has reached a constant velocity, use the conservation of energy to determine `upsilon` in terms of m, B, `lambda` and acceleration due to gravity g.

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