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What are ferrox cubes and ferrites? How are mixed ferrites prepared for industrial uses? Give an account of applications of ferrites pointing out their advantages over a ferromagnetic material.
Ferrites are ceramic compounds comprising trivalent metal having three valence electrons, iron and oxide of divalent element i.e., metals having two free electrons for example MFe2O3 where M indicates transition elements like Co, Ni, Mn, divalent iron, Zn and Cu. They are majorly refractory materials in which all of the valence electrons can be considered as being tied up in an ionic bonding. They are hence unavailable for construction and unable to generate eddy currents. Eddy currents not only dissipate energy but also dampen mechanical and electrical vibrations. They hence reduce very much the usefulness of ferromagnetic materials for high frequency applications. Dielectric losses of ferrites are very low at high frequencies as they have electrical resistivity. Ferrites are thus used as ferromagnetic materials for high frequency applications like TV tubes, high-speed switches, memory devices, microwave applications, transformers. Mixing powdered oxides, compacting and sintering at elevated temperatures make them.
What are uses of benzaldehyde
Benzene is a very symmetrical compound Benzene is a very symmetrical compound. The carbon framework is essentially a planar hexagon. Because of its resonance structures, all car
Using the valence bond approach, reduce the shape and magnetic character of What are elastomers? Write the chemical equation to show the preparation ration of Buna-S.
The energy required to dislodge electron from excited isolated H-atom, IE 1 = 13.6 eV is: (1) = 13.6eV (2) > 13.6eV (3) 3.4 eV
how does chemical bonding takes place?
Acetylene tetrachloride (Westron), CHCl 2 ·CHCl 2 It is as well called as sym. tetrachloroethane. It is made by the action of chlorine on acetylene in existence of a catalyst
1. In water softening, which of the precipitates will settle out? 2. For particle sizes larger than 1μ in size 3. In non-ideal type II settling 4.The most usually used me
seven sloids
conclusion of the topic?
Q. Evlaute the Percent Error? Juan computed the density of aluminium three times. Trial 1: 2.74 g/cm 3 Trial 2: 2.68 g/cm 3 Trial 3: 2.84 g/cm 3 Aluminium has a
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