How large is the magnetic field generated by the electron in the ground state of a hydrogen atom， at the position of the proton if it would circulate according to Bohr model on the shell n = 1？（）

How large is the magnetic field generated by the electron in the ground state of a hydrogen atom， at the position of the proton if it would circulate according to Bohr model on the shell n = 1？（）
A.6.27 T
B.7.98 T
C.3.11 T
D.12.54 T
正确答案：12.54 T