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12 June, 18:58

Determine in symbols an expression for the magnetic force exerted on the falling bar (and determine the direction of that force). Remember that an electric current passes through it, and the bar is falling in the magnetic field. Express your answer in terms of the variables R, B, L, and terminal falling velocity v.

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  1. 12 June, 19:24
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    magnetic force on falling Bar F = B*i*L*sin (90) = B * (B*L*v/R) * L = B^2*L^2*v/R

    direction of the force is vertically upwards
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