heated
brought near to one end of a magnet
suspended in north-south direction
treated with some chemical
directly proportional to the distance
inversely proportional to the distance
directly proportional to the square of the distance
inversely proportional to the square of the distance
conductance
resistance
reluctance
none of the above
strength of a magnet
strength of an electromagnet
magnetisation remained in an iron bar on withdrawal of the magnetising force
the conductivity of a magnetic material for the magnetic lines of force
Carbon steel
Platinum cobalt
ALNICO-V
All of these