Background Info

Electromagnets have been used for a long time and the basic physics behind them makes sense. There are some uncommon terms through when it comes to electromagnetism and just magnets in general. For the first a basic concept that is the basis of why magnetism exists, ferromagnetism. Ferromagnetism explains the basic mechanism by which materials such as iron form permanent magnets. Also among all the types of magnetism ferromagnetism is the strongest. It is also the only type of magnetism that is strong enough to be felt by a person or animal. Other types of magnetism can only be measured with magnetic field sensors.Ferrimagnetism is included in ferromagnetism because the two have many things in common. Ferrimagnetism is included with ferromagnetism in the only magnetic fields strong enough to be felt. Ferromagnetic material is a material in which magnetic moments of the atoms on different subattics are opposed, as in antiferromagnetism however, in ferrimagnetism materials, the opposing moments are unequal and a spontaneous magnetization remains. Ferrous materials are all materials that are a compound of Iron (Fe2+). Examples include: Iron, Steel, and some forms of stainless steel.

The Problem

Trying to push the boundaries of science we decided to see if an electromagnet would form a linear graph of current to magnetic strength. This is all done to reason because at some point depending on the magnet, increasing the current will stop increasing the magnetic strength.

Hypothesis

If the current is increased in an electromagnet then the magnets strength will increase linearly to the increase in current because of ferromagnetism.

• Cores
• Iron (Fe2+) Control
• Steel(Fe3C) independent
• Magnet Wire
• 22 gauge magnet wire with protective coating (Constant)
• Distance from Magnetic field sensor
• 4 mm (Constant)
• Current
• o Start at .00 Amperes and increase by .05 till maximum magnetic strength is achieved or wire begins to melt.