In a hydrogen atom,find the magnetic field at the center in the ground state. Given that Bohr's radius is $r_{0} = 5 \times 10^{-11} \, m$ (in $T$).

  • A
    $15.20$
  • B
    $10.90$
  • C
    $13.95$
  • D
    $20.00$

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