Ferromagnetism refers to the property of certain materials to form permanent magnets or be attracted to magnets. Among the given options:
The correct answer as ferromagnetic is Chromium, particularly in specific alloyed forms.
A current-carrying coil is placed in an external uniform magnetic field. The coil is free to turn in the magnetic field. What is the net force acting on the coil? Obtain the orientation of the coil in stable equilibrium. Show that in this orientation the flux of the total field (field produced by the loop + external field) through the coil is maximum.