A charged particle going around in a circle can be considered to be a current loop. A particle of mass $m$ carrying charge $q$ is moving in a plane with speed $v$ under the influence of magnetic field $\overrightarrow{ B }$. The magnetic moment of this moving particle
  • A$-\frac{ mv ^{2} \overrightarrow{ B }}{ B ^{2}}$
  • B$-\frac{m v^{2} \vec{B}}{2 \pi B^{2}}$
  • C$\frac{m v^{2} \vec{B}}{2 B^{2}}$
  • D$-\frac{m v^{2} \vec{B}}{2 B^{2}}$
JEE MAIN 2020, Diffcult
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