It is no secret that humans have always been drawn to shiny objects. The more it reflects light and the more it catches our eyes, the more likely it is to attract our attention. Metals, such as gold or silver, or copper, are worth considering. But have you ever considered why metals are so shiny? … Read more
Electronic circuits make use of ferrite bead inductors for filtering purposes. These inductors are made of ferrite bead, a choke used to minimize or eliminate high-frequency electromagnetic interference and generate a clearer signal in a circuit. It works similar to a low-pass filter that allows only low-frequency signals to pass through a circuit. When these … Read more
Ferrite Magnets, also known as ceramic magnets, are a suitable alternative to natural magnets. These magnets are used in electronic devices & industrial applications across the world. They are found in over 70% of all the products that require a magnet for smooth operation. Two common reasons for their growing demand are cost-effectiveness and superior … Read more
Magnetic Plates are separators used to extract ferrous particles and small tramp iron, such as nuts, bolts, nails, bits of wire, etc. from free-flowing materials to protect the machinery from any potential damage. They help to enhance the production process by removing these particles. These plates can be installed in ducts, sputs, feed trays or … Read more
Ferrites are magnetic materials that are considered better than pure metals because of their wide range of properties, such as low cost, high resistivity, easy manufacturing, and superior magnetization. They are widely used in radar, audio & video, memory cores of computers, microwave devices, and satellite communication. Their high electrical resistance and low eddy current … Read more
Semiconductors are those substances whose electrical conductivity lies in between conductors and insulators. In terms of energy band, the valence band is almost filled and conduction band is almost empty. Further, the energy gap between valence band and conduction band is very small. The semiconductor has filled valence band, empty conduction band, and small energy gap … Read more
Band Gap Theory The Band Gap theory explains the mechanism of conductor, insulators and semiconductor regarding the movement of free electrons from valence band to the conduction band. An energy band which separates the conduction band and the valence band is called Band gap or Forbidden band or Forbidden gap. Based on energy gap, the material … Read more
Recombination and trapping processes in a semiconductor Recombination is the process where an electron moves from the conduction band into the valence band so that a mobile electron-hole pair disappear. Classical mechanics requires that momentum be conserved in an encounter of two particles. Since the momentum is zero after recombination, this conservation law requires that … Read more
Magnetic bubble memory consists of magnetic bubbles used to store data bits. These bubbles move in thin films of magnetic material. The bubbles are cylindrical magnetic domains having polarization opposite to that of the thin film in which they are embedded. A thin film of magnetic garnet contains wavy strips of magnetic domains when an … Read more
Soft Magnetic Materials These materials are easy to magnetise and demagnetise. These materials favour rapid switching (it means high frequency) of magnetism to applied ac field. These materials have low retentivity. Low coercivity. High permeability High magnetic saturation Low hysteresis losses because of the lesser area of the hysteresis loop. These materials are used for … Read more