A charge of 4.0 x 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.
A charge of 4.0 x 10^-6 C is placed on a small conducting sphere that is located at the end of a thin insulating rod whose length is 0.20 m. The rod rotates with an angular speed of 150 radians/second about an axis that passes perpendicularly through its other end. What is the magnetic moment of the rotating charge?
