The radius of the orbital of electron in the hydrogen atom $0.5  \mathring A$. The speed of the electron is $2 \times {10^6}m/s$. Then the current in the loop due to the motion of the electron is ............. $mA$

  • A
    $1$
  • B
    $1.5 $
  • C
    $2.5 $
  • D
    $1.5 \times {10^{ - 2}}$

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