A spherical shell of radius $'R'$ carries uniformly distributed charge $'Q'$ is rotated about it's diameter with angular speed $\omega $ find it's magnetic moment
  • A$\frac{1}{3}q\omega {r^2}$
  • B$\frac{2}{5}q\omega {r^2}$
  • C$q\omega {r^2}$
  • D$\frac{3}{5}q\omega {r^2}$
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