  Magnetisation of superconductors are often measured under isothermal and
uniform magnetic fields. Magnetisation measurements in an unrestricted
thermodynamic state and in non uniform magnetic fields naturally emerge from
permanent magnets in comparison with size of superconducting bulk are needed
for practical applications. A stationary Type II superconductor bulk sample is
magnetised (FC and ZFC) at liquid nitrogen temperatures in the presence of a
stationary permanent magnet. Magnetic field produced by magnetised
superconductor and permanent magnet as a function of distance are measured
along a straight line, a supposed path of another moving permanent magnet. A
moving magnet is introduced and moved along the same straight line. Force
acting on moving magnet as a function of distance are measured due to
magnetisation in superconductor and stationary magnet. Both field and force
measurements are quasi static. These experimental results combined with
simulation results show insight in to the transfer of energy stored in
magnetisation to thermal energy and the effect of rate of this energy transfer
in AC response of superconductors which are otherwise not possible with
isothermal studies. A possible application of reversible braking with bulk
superconductors for motors and generators is explored. Future similar
measurements with Type I superconductor would provide more insights in to this
study.
