Magnetic Materials: Types of Magnetism, Applications, and Origin of Magnetism I feel like every time I learn something about magnetism, I realize that my previous understanding was somehow incorrect or oversimplified. As I’m writing this, I have finished my PhD classes, so hopefully I’m done re-learning magnetic properties. All materials have some form of magnetism [...]
Electromagnetic Spectrum Word Search The electromagnetic spectrum is the collective name of all the different frequencies and types of light or electromagnetic radiation. This electromagnetic spectrum word search has 27 hidden electromagnetic spectrum glossary terms. Search for the hidden words by looking vertically, horizontally, and diagonally. This word search puzzle is designed to fit on [...]
Difference Between Paramagnetic and Diamagnetic The key difference between paramagnetic and diamagnetic materials is that the paramagnetic materials get attracted to external magnetic fields whereas the diamagnetic materials repel from the magnetic fields. Materials tend to show weak magnetic properties in the presence of an external magnetic field. Some materials get attracted to the external [...]
List of Magnetic Metals Magnetic materials are attracted to a magnet and may even become magnetized. Nearly all magnetic materials are metals. Familiar examples of magnetic metals include iron, nickel, cobalt, and steel. But, magnetism is a complex phenomenon. Not all iron or steel is magnetic. There are even some nonmetals that display magnetism! Here [...]
Paramagnetic, Diamagnetic And Ferromagnetic Substances Diamagnetic Substances These substances are weakly magnetized, when they are placed in the external magnetic field, in a direction that is opposite to the applied field. The magnetism that is exhibited by these substances is known as the diamagnetism. The examples of these substances are silver, bismuth, gold, copper, mercury, [...]
Paramagnetic vs Diamagnetic vs Ferromagnetic – Magnetism Diamagnetic, paramagnetic, and ferromagnetic are the three main types of magnetic materials. The terms describe diamagnetism, paramagnetism, and ferromagnetism. The different types of magnetism refer to the way a material reacts to an external magnetic field. Here is a look at these three types of magnetism, examples of [...]
Diamagnetic, Paramagnetic, and Ferromagnetic Materials After reading this section you will be able to do the following: Describe the sources of magnetic moments. Identify the differences between diamagnetic, paramagnetic, and ferromagnetic materials. When a material is placed within a magnetic field, the magnetic forces of the material's electrons will be affected. This effect is known [...]
What are Ferromagnetic Materials After reading this section you will be able to do the following: Define what ferromagnetic materials are. Explain the differences between a permanent magnet and a temporary. Explain why some materials have magnetic properties only when a permanent magnet is near them. In ferromagnetic materials, the magnetic moments of a relatively [...]
Ferromagnetic Materials Ferromagnetic materials are a class of substances that exhibit strong magnetic properties. These materials are characterized by their ability to become permanently magnetized when exposed to an external magnetic field and retain this magnetization even after the field is removed. The term "ferromagnetic" is derived from the Latin word "ferrum," which means iron, [...]
Magnetic Lines of Force Magnetic lines of force, also known as magnetic field lines or magnetic flux lines, are a conceptual tool used to visualize and understand the behavior of magnetic fields. They provide a way to represent the direction and strength of magnetic fields in three-dimensional space. Magnetic field lines are imaginary lines that [...]
The Electric Motor and Magnetism After reading this section you will be able to do the following: Discuss why magnetism is important to the operation of an electric motor. How does magnetism make an electric motor operate? An electric motor converts electric energy into mechanical energy that can be used to do work. In the [...]
Surface Magnetism Field Surface magnetism refers to the magnetic induction intensity at a certain point on the surface of the magnet, and the unit is Gauss Gs or Tesla T (1T=10000Gs). The surface magnetism at different positions on the surface of the magnet is not the same. Generally speaking, "surface magnetism" refers to the center [...]
Magnetic Moment The generation of the magnetic field can be divided into two aspects: one is based on the moving current (electromagnetic induction), and the other is based on the spin of the basic particles of matter. The first is the magnetic effect of current that we are more familiar with, which is the magnetic [...]
Magnetic induction B and magnetic polarization J Practice and theory have proved that when a ferromagnetic or ferrimagnetic substance is magnetized in a magnetic field, in addition to the magnetic field in the substance, because the magnetic moments of the atoms of the ferromagnetic substance turn to the direction of the external magnetic field, it [...]
Permanent magnets in Apple's magnetic wireless charger Since the iPhone 8 in 2017, Apple has added a wireless charging function to all iPhone models, which is similar to other mobile phone wireless charging methods. It starts charging when placed on a wireless charger. This wireless charging relies on the transmitter coil and Accepting the alignment [...]
Magnetization direction and orientation direction The magnetism of permanent magnets mainly comes from its crystal structure that is easily magnetized. It can obtain extremely high magnetism under the action of a strong external magnetic field, and its magnetism will not disappear after the external magnetic field disappears. Therefore, "magnetization" is NdFeB A key step for [...]
Permanent Magnets Magnetism and Electromagnetism Centuries ago, it was discovered that certain types of mineral rock possessed unusual properties of attraction to the metal iron. One particular mineral, called lodestone, or magnetite, is found mentioned in very old historical records (about 2500 years ago in Europe, and much earlier in the Far East) as a [...]
Magnetism Science is our understanding of how the world works—and generally the world works fine whether we understand it or not. Take magnetism, for example. People have known about magnets for thousands of years and they've been using them practically, as compasses, for almost as long. The ancient Greeks and Romans knew as well as [...]
Regular Magnetic Floor Sweeper These models are incredibly strong and well built! Powerful ceramic magnets are encased in a durable aluminum housing which can be cleared of collected debris with work gloves or heavy shop towel. Regular Magnetic Floor Sweeper The 24″ model picks up 7.5 lbs. of 8-penny nails from 2″ height [...]
