Given that the proton has a magnetic moment of 2.79 magnetons and a spin quantum number of one half, what magnetic field strength would be required to produce proton resonance at a frequency of 60 MHz in a nuclear magnetic resonance spectrometer?
The resonance frequency ν is given by ν = μβ/Ih
where μ is the magnetic moment, B the magnetic induction, I the nuclear spin in units of ℏ. A nuclear magneton μN = 5.05 × 10−27 JT−1.
