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?

diamagnetism
	paramagnetism
	ferromagnetism Once again, you are given an unknown material that initially generates no magnetic field. When this material is placed in a magnetic field, it produces a strong internal magnetic field, parallel to the external magnetic field. This field is found to remain even after the external magnetic field is removed. Your material is which of the following? diamagnetic paramagnetic ferromagnetic What type of magnetism is characteristic of most materials? What type of magnetism is characteristic of most materials? ferromagnetism paramagnetism diamagnetism no magnetism

Answer 1

Concepts and reason

The required concepts to solve the problem are properties of diamagnetism, para magnetism and ferromagnetism.

Initially, find the material whether it is paramagnetic, diamagnetic or ferromagnetic which has the property to loses its internal magnetic field when the external field is removed. Later, find the material whether it is paramagnetic, diamagnetic or ferromagnetic which has the property to retain its internal magnetic field when the external field is removed.Finally, find the characteristic that most material have.

Fundamentals

Magnetism is a property of an object by the virtue of which a material can exert attractive and repulsive force on another object. The motion of electrons in atoms is the cause of the magnetic properties of a material. Depending on the motion of electrons and their spin, each material behaves differently to a magnetic field.

Diamagnetism is the property of a material which forms in opposition to an external field and thus causing a repulsive effect.

Paramagnetic is the property of a material where the magnetic property is acquired in the presence of an external magnetic field.

Ferromagnetism is the property by which certain materials form permanent magnets.

The material which produces no initial magnetic field when placed in a uniform magnetic field produces an additional internal magnetic field parallel to the original field. In addition, it loses the magnetic properties as soon as the external magnetic field is removed.

These features are the characteristics of a paramagnetic material.

The material which produces no initial magnetic field, when placed in a uniform magnetic field but produces a strong internal magnetic field parallel to the original field. The magnetic property remains constant even after the field is removed.

These features are the characteristics of a ferromagnetic material.

The characteristic present in most of the materials is diamagnetism. In paramagnetic and ferromagnetic materials, the diamagnetic effect is overcome by the attractive force of magnetic dipoles in the material.

Ans:

The magnetism the material exhibits is paramagnetic.

The magnetism the material exhibits is ferromagnetism.

The type of magnetism which is a characteristic of most materials is diamagnetism.