The magnetic susceptibility is negative for:

A wire carrying current I, bent as shown in the figure, is placed in a uniform field B that emerges normally out from the plane of the figure. The force on this wire is _____________.

Fill in the blank with the correct answer from the options given below.

Magnetic moment of a thin bar magnet is ‘M’. If it is bent into a semicircular form, its new magnetic moment will be ___________.
Fill in the blank with the correct answer from the options given below.

Ferromagnetic material used in Transformer must have ___________.
Fill in the blank with the correct answer from the options given below.

Three magnetic materials are listed below
(A) paramagnetics
(B) diamagnetics
(C) ferromagnetics
Choose the correct order of the materials in order of magnetic susceptibility.