A) perpendicular to the field
B) from weaker to the stronger parts of the field
C) from stronger to the weaker parts of the field
D) in none of the above directions
Correct Answer: C
Solution :
[c] When a diamagnetic material is placed in an external magnetic field, the spin motion of electrons is so modified that the electrons which produce the magnetic moments in the direction of external field slow down while the electrons which produce magnetic moments in opposite direction get accelerated. Thus, a net magnetic moment is induced in the opposite direction of applied magnetic field. Hence, the substance is magnetized opposite to the external field. Thus, it moves from stronger to weaker parts of the magnetic field.
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