A bar magnet is cut into two equal halves by a plane parallel to the magnetic axis. Of the following physical quantities the one which remains unchanged is
A. pole strength
B. magnetic moment
C. intensity of magnetisation
D. None of these
Answer:C
A bar magnet is cut into two equal halves by a plane parallel to the magnetic axis. Of the following physical quantities the one which remains unchanged is
A. pole strength B. magnetic moment C. intensity of magnetisation D. None of these