Problem

In the Bohr model of the hydrogen atom, the electron circulates around the nucleus in a path of radius

5 \times 10^{-11} \text{ m}

at a frequency of

6.8 \times 10^{15} \text{ Hz}

. a. - (a) What value of magnetic field is set up at the centre of the orbit? b. - (b) What is the equivalent magnetic dipole moment?