Classes of magnetic materials: diamagnetism, Physics

Assignment Help:

Diamagnetism is a basic property of all matter, though it is generally very weak. It is due to the no cooperative behaviour of oepenrbiting electrons when exposed to an applied magnetic field. Diamagnetic substances consist of atoms which have no net magnetic moments. (Each and every orbital shell is filled and there are no unpaired electrons). When a diamagnetic substance such as a silicon crystal is placed in a magnetic field, the magnetization vector M in the materials in the opposite direction to the applied field. Hence the resulting field B within the material is less than μ0H. Therefore the susceptibility is negative. The negative susceptibility can be interpreted as the diamagnetic substance trying to expel the applied field from the material. When a diamagnetic specimen in placed in a no uniform magnetic field, the magnetization M of the material is in opposite direction to B and the specimen experiences a net force toward smaller fields, as dedicated. Put a note that when the field is zero then the magnetization is zero. The other characteristic behaviour of diamagnetic materials is that the susceptibility is temperature independent some well known diamagnetic substances are quartz calcite, water, copper, silver, gold, etc.

 


Related Discussions:- Classes of magnetic materials: diamagnetism

Nuclear Physics, what is the difference between nuclear fusion and nuclear...

what is the difference between nuclear fusion and nuclear fission?

A capacitor is able to serve as which of the following, Questions: A ca...

Questions: A capacitor is able to serve as which of the following? Answer: By classification a capacitor is a charge storage device. In storing charge a capacitor as we

Plastic capacitors, Since polymeric materials can be formed in thin, highly...

Since polymeric materials can be formed in thin, highly uniform and non porous films with high dielectric strength, these materials are preferred dielectric materials for capacitor

What is the length of the string, The mass of a string is 4.20 x 10 -3 kg,...

The mass of a string is 4.20 x 10 -3 kg, and it is stretched so the tension in it is 135 N. A transverse wave traveling on this string has a frequency of 260 Hz and a wavelength o

Determine displacement current density, In free space electric field intens...

In free space electric field intensity is provided as E= y 20 cos (ωt-50x) volt/m. Determine displacement current density.

What effect does this have on eclipses, Q. If the moons orbit is inclined s...

Q. If the moons orbit is inclined somewhat relative to the Earth's orbit what effect does this have on eclipses? Answer:- This makes eclipses rarer as well as if the moon's

1 farad, 1 Farad: One farad is described as the capacity of that capaci...

1 Farad: One farad is described as the capacity of that capacitor which keeps a charge of 1 coulumb, if the potential difference among the plates is one volt. It's equation

What is the slope of the line showing the motion of the toy, A child's toy ...

A child's toy train moves at a constant speed of 2.0 cm/s. a. Illustrate the position-time graph showing the position of the toy for 1.0 min. b. What is the slope of the lin

Bridgmann stock bargee technique, It is suitable for growing semi-conductiv...

It is suitable for growing semi-conductively alloys like gallium arsenide. A typical arrangement is furnished with an induction heater that provides a controllable temperature grad

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd