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Ferrites can be divided into two groups based on their magnetic coercivity, their resistance to being demagnetized: [2] "Hard" ferrites have high coercivity, so are difficult to demagnetize. They are used to make permanent magnets for applications such as refrigerator magnets, loudspeakers, and small electric motors.
The most common soft ferrites are: Manganese-zinc ferrite (MnZn, with the formula Mn a Zn (1−a) Fe 2 O 4). MnZn have higher permeability and saturation levels than NiZn. Nickel-zinc ferrite (NiZn, with the formula Ni a Zn (1−a) Fe 2 O 4). NiZn ferrites exhibit higher resistivity than MnZn, and are therefore more suitable for frequencies ...
Thulium-169 is thulium's only primordial isotope and is the only isotope of thulium that is thought to be stable; it is predicted to undergo alpha decay to holmium-165 with a very long half-life. [10] [22] The longest-lived radioisotopes are thulium-171, which has a half-life of 1.92 years, and thulium-170, which has a
A ferrite bead with its plastic shell removed. Ferrite beads prevent electromagnetic interference (EMI) in two directions: from a device or to a device. [1] A conductive cable acts as an antenna – if the device produces radio-frequency energy, this can be transmitted through the cable, which acts as an unintentional radiator.
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Anna Kendrick shared a series of helpful safety tips for women to use when their gut is telling them they’re in danger. The actress recently starred in Woman of the Hour, which tells the real ...
Zinc ferrites are a series of synthetic inorganic compounds of zinc and iron with the general formula of Zn x Fe 3−x O 4. Zinc ferrite compounds can be prepared by aging solutions of Zn(NO 3 ) 2 , Fe(NO 3 ) 3 , and triethanolamine in the presence and in the absence of hydrazine , [ 1 ] or reacting iron oxides and zinc oxide at high temperature.
"My Unconventional Life" profiles individuals across the country who celebrate their nonconformity and proudly lead unorthodox lives. Check in weekly to learn more about these unique individuals ...