A magnetic dipole with a magnetic moment of $6 \times 10^{-2} \, \text{Am}^2$ and a moment of inertia of $12 \times 10^{-6} \, \text{kg·m}^2$ performs oscillations in a magnetic field of $2 \times 10^{-2} \, \text{T}$. The time taken by the dipole to complete 20 oscillations is $12 \, \text{s}$.