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If we have to strain a ferromagnetic crystal along certain direction, we would change the inter atomic spacing not only along this direction but also in other direction. And hence the exchange interactions between the atomic spins are also changed. This would lead to a change in the magnetization property of crystal. When an iron crystal is placed in a magnetic field along an easy direction, it gets longer along this direction but contracts in the transverse directions. The longitudinal strain $l/l along the direction of magnetization is called magnetostriction constant denoted by λ. When the crystal reaches saturation magnetization, λ also reaches saturation called saturation strain. The crystal lattice strain energy associated with magnetostriction is called magnetostrictive energy. Magnetostriction is responsible for transformer hum noise.
if joe rides his bicycle in a straigght line for 15 min with an average velocity of 12.5 km/h south how far has he ridden
#questionMnS is a paramagnetic solid. At 300°K, there are 4 × 1022 molecules of MnS per cm3. If the cationic magnetic moment of MnS is 5 MB, use the Curie law in 8-b to compute the
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What are the electron microscopy application in biology and life sciences? Biology and life sciences as in electron microscopy application: a. Cryobiology and Cellular tomog
A drunkard is walking along a straight road.he takes 5 steps forward and 3 steps backward and so on.each step is one meter long and takes one second.there is a pit on the road 11 m
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What is LASER? describe the construction and working of He-Ne Laser with suitable diagram
A thermocouple is used to calculates very high (2000 0 C) as well as very low (- 200 0 C) temperature in industries and laboratories. The thermocouple used to measure very high tem
What are the demerits of the typical ultrasonic flaw detector? Demerits of a typical ultrasonic flaw detector: a. Both the sides of the specimen are needed for the study.
you are trying to measure the diameter of a circular lab table using a lab metre stick. you measure the diameter in several directions and find the following results: 98.5 cm, 1.00
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