Magnets and Electromagnets Essay

What is magnetism? When two pieces of iron are attracted to each other by physical means or electrical means.

Magnets have a magnetic field surrounding them and these fields is the magnetism force that the magnet poses of an object. On a large scale, the Earth is a magnet which also has a magnetic field.

Definition First of all, an electromagnet has to be defined. An electromagnet can also be called a Solenoid, Which consists of a core of iron and then wire is wrapped round it.

Bill Nye Resources on Magnets and Magnetism: http://billnye.com/billnye_resource/magnetism/ (Links to an external site.)Links to an external site. and https://vimeo.com/121217374 (Links to an external site.)Links to an external site.

Yes, that’s true, though ‘magnetic’ in this sense means something a little different. Metals that don’t stick to magnets are known as ‘non-ferrous metals’. Some of these metals include copper, aluminum, lead, and nickel along with alloys such as brass. These metals share many similarities, but the one that keeps them from sticking to magnets is the fact that they don’t have trace amounts of iron in them. The iron is what

Magnetic field strength is proportional to the speed at which the charge moves and the size of the charge. Protons are made up of 3 basic properties, positive electric charge, a very small mass and spin. A protons charge is extremely small although the speed at which is spins is extremely quick. This creates a magnetic field that can be detected. About 70% of the human body is comprised of water and water is the largest source of protons of any substance within the human body. This is followed by fat. The direction of the protons magnetic field is randomized when no magnetic field is applied. Similar to a compass, the magnetic field that the proton creates can be aligned when another large magnetic field is introduced. In MRI this field is known as B0. (Simplyphysics.com,

Mostly consists of Iron. Small amounts of other metals or elements are added to give the needed properties. Ferrous Metals are magnetic and have little resistance to corrosion.

Magnetism occurs when a magnetic field forms. There are two sides of a magnetic field; south pole and north pole. If the two poles are opposite, they will attract and vise versa. A magnet can magnetize an iron object. Electromagnetic waves work

A magnet is an object that has a magnetic field. It can attract heavy objects such as iron and steel. A magnet can be in many shapes and sizes. The word magnet came from the elderly Cretan shepherd, Magnes. He supposedly found a rock that had a strong magnetic force. In the rock was large amounts of lodestone. The most common magnet used today is the bar magnet. They can also be used in compasses.

How strong is the magnetic field went the length of the coil on the electromagnet is shorter or longer?

The human body is mostly made up of molecules of water (H20) .The body is made up of 60% hydrogen atoms. The nuclei of hydrogen atoms are composed of one proton (a subatomic particle containing a positive charge). These protons are very sensitive to magnetic fields, and when they begin to spin they produce their own magnetic field. This means that the nucleus of a hydrogen atom acts like a little magnet. When the human body is exposed to a large magnetic field, these protons line up. A similar phenomenon occurs when compass needles line up when surrounded by a magnetic field. However a proton goes through a

Susceptible metals are magnetized, and the ID portion of the pin is secured magnetically through the fabric with another small magnet. The major advantage, or course, is that the fabric need not be pierced to secure the pin. There are several disadvantages, though. First, the lapel pin must necessarily have a backing that can be magnetized which may limit your selection choices. Then, if the fabric the pin is to be worn on is too thick, the magnetic may not hold as a magnetic field won't be able to be

I have always been coming up with crazy ideas on to build stuff. Most people would just look at me and shake their head. This project is based on one of those more crazy ideas. Most people don’t understand the awesome capabilities of magnets. This paper will discuss the research of magnets and the hopefully I will be able people the awesome things magnets can do.

An electricity and magnetism phenomenon apparently unrelated to power are electrical magnetic fields. We are familiar with these forces through the interaction of compasses with the earth's magnetic field, or through fridge magnets or magnets on children's toys. Magnetic forces are explained in terms very similar to those used for electric forces:

Magnetic repulsion works on the principle of using electro magnets to levitate objects. Unlike normal magnets, electro magnets are created by the movement of current through wires. This means that the strength of the magnet can be changed by increasing or decreasing the current in the wire. As well as this, it is possible to change the poles of the magnet. This is important as it allows the magnet to both push and pull depending on the current. Using the idea that north repels north and south repels south, if the ground were to have the same pole as the electric magnet, then the electric magnet would hover. This idea can better be seen in figure 1.