Home › Forums › Hyperfine course › ERP › EPR on free atoms (2) › First answer This topic has 0 replies, 1 voice, and was last updated 1 week, 1 day ago by Guillaume Smet. Viewing 1 post (of 1 total) Author Posts May 6, 2025 at 12:39 am #6643 Guillaume SmetParticipant When the resonance condition is satisfied there is the right amount of energy to let it change to a different level and its orientation would change. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In