The pressure of the atmosphere decreases with increasing height above the earth’s surface, because the thickness, and therefore the weight, of the belt of air […]
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Tabular Description of the Properties of Magnetic Materials
Magnetic Material: Steel is more suitable for permanent magnets, because it high coercivity meaning that it is not easily demagnetized by shaking. The fact that […]
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Detailed Description of Resonance in Sound and Mechanics
If a diving springboard is bent and then allowed to vibrate freely, it oscillates with a frequency which is called its natural frequency. When a […]
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Electrostatic Shielding in an Electric Field
Electrostatic shielding: The fact that there is no electric field inside a close conductor, when it contains no charged bodies, was demonstrated by Faraday in […]
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Explanation of Ferromagnetism and Magnetic Domain
A ferromagnetic material has a very high value of susceptibility, χ, and hence of relative permeability, µr. The value of µr can be several thousands. […]
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