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Q. Suppose 0.3 long copper rods in the electromagnetic swing carried a current of 5.0A and the force on the wire is around 0.20N what would be the magnitude of magnetic field B?

Q. On a frictionless table, a glob of clay of mass 0.24 kg strikes a bar of mass 1.34kg perpendicularly at a point 0.38m from the center of the bar and sticks to it. If the bar is 1.14 m long and the clay is moving at 9m/s before striking the bar. At what angular speed does the bar/clay system rotate about its center of mass after impact?

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