Question

When placed in a magnetic field, a paramagnetic substance experiences :

• A. increase in weight
• B. decrease in weight
• C. weightlessness
• D. no change in weight

Answer 1

The correct option is A increase in weight

Guoy method is the sample configuration for force measurement of magnteic susceptibility where the sample is placed in a long cylindrical tube which is suspended from an analytical balance. The sample tube is positioned between the poles of a magnet such that one end of the tube is in region of homogenous field and the other is in the zero field. Paramagnetic material experiences an increase in weight where as diamagnetic substance experiences a decrease in weight.