A charge of 4.20 10-6 C is placed on a small conducting sphere that is located at the end of a thin insulating rod whose length is 0.22 m. The rod rotates with an angular speed of ω = 159 rad/s about an axis that passes perpendicularly through its other end. Find the magnetic moment of the rotating charge. (Hint: The charge travels around a circle in a time equal to the period of the motion.)

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