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(A) diamagnetic material,when placed in a non-uniform magnetic field,tends to move from the stronger part of the field to the weaker part. When a smal

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Diamagnetic

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(A) diamagnetic material,when placed in a non-uniform magnetic field,tends to move from the stronger part of the field to the weaker part. When a small rod of a diamagnetic material like bismuth is suspended freely in a uniform magnetic field,it experiences a torque that causes it to align itself perpendicular (at right angles) to the direction of the magnetic field. This happens because the material is weakly repelled by the magnetic field,and the perpendicular orientation minimizes the magnetic potential energy of the system. Therefore,the observation establishes that bismuth is diamagnetic.

$A$ small rod of bismuth is suspended freely between the poles of a strong electromagnet. It is found to arrange itself at right angles to the magnetic field. This observation establishes that bismuth is

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