Question

You are given a material which produces no initial magnetic field when in free space. when it is placed in a region of uniform magnetic field, the material produces an additional internal magnetic field parallel to the original field. however, this induced magnetic field disappears when the external field is removed. what type of magnetism does this material exhibit? you are given a material which produces no initial magnetic field when in free space. when it is placed in a region of uniform magnetic field, the material produces an additional internal magnetic field parallel to the original field. however, this induced magnetic field disappears when the external field is removed. what type of magnetism does this material exhibit? diamagnetism paramagnetism ferromagnetism

Answer 1

The correct answer is:
paramagnetism 

In fact, paramagnetic materials, when they are placed in a magnetic field, they form an internal magnetic field parallel to the external one and in the same direction. However, unlike ferromagnetic materials, they do not retain their magnetization, so when the external magnetic field is removed, their internal induced magnetic field disappears.