Magnetostriction

Magnetostriction Magnetostriction is the property of magnetic materials that causes them to change shape when in the presence of a magnetic field. The vibrations in the form of sound are caused by the frequency …

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Thermionic emission

Thermionic emission. Phenomenon that has its origin in the emission of electrical particles with negative charge or electrons from an electrically heated filament in all directions. Summary [ hide ] 1 History 2 Edison experiment …

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SI Prefix Table

All physical quantities, such as distance, speed, energy, among others, are related to some system of units, such as the International System of Units (SI), the MKS system (meter – kilogram – second), the Imperial system (used in countries such …

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