A nonconducting circular disk, of radius R, carries
Chapter 28, Problem 28.39(choose chapter or problem)
A nonconducting circular disk, of radius R, carries auniformly distributed electric charge Q. The plate is setspinning with angular velocity o) about an axis perpendicularto the plate through its center (Fig. 28-47). Determine(a) its magnetic dipole moment and (b) the magneticfield at points on its axis adistance x from its center; (c) doesEq. 28-7b apply in this case forx R IFIGURE 28-47 39.
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