Magnetism, particularly about the Earth's magnetic field, is one of the topics that you will surely go through in your science classes. There has been no final explanation as to how the Earth's magnetic field is formed, but it is speculated to be the electrical current mechanism termed as the Dynamo Effect.
Teachers may not find it easy to discuss this matter simply by explaining it through words. As such, there is a need for educational products on the Earth's magnetic field to further explain the concept and thus make the students understand how the reaction takes place. To make it easier for you, the following products are compiled to help you in choosing and using the best educational product that can explain electric magnetic force responsible for the earth's magnetic field and magnetic shielding.
- Compass Sensor. This educational product is used to measure the magnetic field force by calculating the magnetic heading. As it measures the earth's magnetic force, it produces a value that represents the electric current heading. In turn, the magnetic heading is measured and rounded off to the nearest degree. Most sensors come standard with a magnetoresistive bridge and set/reset coils, which usually returns as a number from 0 to 359.
- Magnetic Field Display Viewing Film. This product can be used to have a clear concept of magnetic force on the Earth. It is usually made from translucent substances with paper-like qualities that allow visibility of magnetic fields. Some products are made from a plastic film with a ferromagnetic slurry of tiny nickel particles, which arrange themselves in line with the magnetic field lines. This reaction manifests the magnetic nickel particles that are suspended in colloidal order in a seemingly gelatin like substance. This permits enough space for the particles to be in line with a magnetic field that's applied externally. From this condition, the colored fluid is displaced, which causes changes in the color and surface texture of the film. The size may vary depending on the product and brand.
- Magnetometer. If you want to see a map of the earth's magnetic field, then this is the educational product that you need. An Earth Magnetometer shows a variation from place to place of the over-all magnetic shielding field of the earth's magnetic field. It comes standard with a magneto-resistive sensor that utilizes the spins of electrons flowing into a wire circuit. It has features similar to a flux gate but it is smaller in size and is more temperature stable.
- Magnetic Field Pictures and Diagrams. Explaining the Earth's electromagnetic force and magnetic shielding without pictures and diagrams is surely a pain. It's too technical to explain and understand, but with visual assistance like pictures and diagrams, you can find it easy to visualize what takes place in the earth's magnetic field.
Aside from these products, the World Wide Web still has lots and loads of educational products on the Earth's magnetic field. All you have to do is a little research for the product that will best fit your needs.

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