Two Magnetic
describe the properties and an application of two different magnetic materials commonly used in electrical and
describe the properties and an application of two different magnetic materials commonly used in electrical and electronic engineering.
give your answers in detail
air is used in air wound coils in elecdtronic circuits.
Ferrite is used in a similar way.
ferrite magnets are made of a sintered composite of powdered iron oxide and barium/strontium carbonate ceramic. Due to the low cost of the materials and manufacturing methods, inexpensive magnets (or nonmagnetized ferromagnetic cores, for use in electronic component such as radio antennas, for example) of various shapes can be easily mass produced. The resulting magnets are noncorroding, but brittle and must be treated like other ceramics.
Iron in Power transformers.
Transformers are used extensively in consumer electronic products to step down the supply voltage to a level suitable for the low voltage circuits they contain. In these kind of applications the transformer may also act as a key safety component that electrically isolates the end user from direct contact with the potentially lethal supply voltage.
http://en.wikipedia.org/wiki/Transformer
http://en.wikipedia.org/wiki/Magnetic_materials
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