# Energies of a Bohr atom

1. Feb 24, 2008

### mystery_witch

I have this problem to solve, but I can't seem to find the right formula. It says to use "an expression for energies of a Bohr atom in a weak magnetic field".

I've looked in my coursebook but I can't find anything useful. Can anyone help me?

2. Feb 25, 2008

### pam

In a weak magnetic field the term $$-\mu\cdot{\vec B}$$ gets added to the energy.