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A conducting rod AB moves parallel to x-axis in the x-y plane. A uniform magnetic field B pointing normally out of the plane exists throughout the region. A force F acts perpendicular to the rod, so that the rod moves with uniform velocity v. The force F is given by (neglect resistance of all the wires) A. `(vB^(2)l^(2))/(R)e^(-t//RC)`B. `(vB^(2)l^(2))/(R)`C. `(vB^(2)l^(2))/(R)(1-e^(-t//RC))`D. `(vB^(2)l^(2))/(R)(1-e^(-2t//RC))` |
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Answer» Correct Answer - C Formation of `PbSO_(4)` is prevented in extraction of lead by carbon reduction |
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