A) copper, aluminium, iron
B) aluminium, copper, iron
C) copper, iron, aluminium
D) aluminium, iron, copper
Correct Answer: A
Solution :
Diamagnetic substances when placed in a magnetic field are feebly magnetised opposite to the direction of the magnetising, field, to example copper. Paramagnetic substances when placed in a magnetic field are feebly' magnetised in a direction of the magnetising field, example aluminium. Ferromagnetic substances when placed in a magnetic field are strongly magnetised in the direction of the magnetising field, example iron.
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