A diamagnetic substance D and a paramagnetic substance P are separately introduced into the same non-uniform magnetic field. Which statement is correct?
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Question

A diamagnetic substance D and a paramagnetic substance P are separately introduced into the same non-uniform magnetic field. Which statement is correct?

G1 Physics · Accepted Answer

For a paramagnetic material, χₘ > 0, so it is attracted toward the region where the magnetic field is stronger. For a diamagnetic material, χₘ < 0, so it is repelled from the stronger-field region and tends to move toward the weaker-field region. Therefore D moves toward weaker field and P toward stronger field.