Distinguish between ferromagnetic and paramagnetic materials, Electrical Engineering

Assignment Help:

Distinguish between ferromagnetic and paramagnetic materials, mentioning at least one example of each.

Ferromagnetic Materials: These are materials wherein magnetic dipoles interact in a manner which they aim to line up in parallel. Ferromagnetic substances have a number of domains or regions that are spontaneously magnetized. This direction of magnetization varies by domain to domain. And the resultant magnetization is zero or may nearly zero. The relative permeability is extremely high. Presence of external magnetic field, the ferromagnetic materials find strongly magnetised and exhibit hysterisis loop. The susceptibility of these is specified by

 χ = C / T - TC , here C is curie constant, TC is the curie temperature above that the ferromagnetic material exhibits paramagnetic behaviour. The ferromagnetic materials are broadly used in industries. Examples are: Iron, nickel and cobalt.

Paramagnetic Materials: The atoms of these materials have permanent magnetic dipoles. Individual dipoles are oriented in random fashion therefore resultant magnetic field is negligible or zero. For these materials relative permeability is slightly greater than unity and this is independent of magnetizing force. In presence of external magnetic field, paramagnetic materials find weakly magnetised into the field direction and the susceptibility is specified by

 χ = C /T , here C is a curie constant and T is the temperature. Examples are: Chromium chloride, manganese sulphate, chromium oxide and air.


Related Discussions:- Distinguish between ferromagnetic and paramagnetic materials

Simulation in Proteus, Hi, I need help simulating my project in Proteus, ...

Hi, I need help simulating my project in Proteus, problem is, I have never used it before. This is what I have so far. However, feel free to suggest ideas that will make the circ

Amper circuital lw, the plot of amper circuital law by using matlap?

the plot of amper circuital law by using matlap?

Illustrate the basic concept of machine cell design, a) Write short notes o...

a) Write short notes on part feeding devices and transfer mechanism. b) Explain with example automation for machining operation with relevant diagrams. c) discuss different p

Daa decimal adjust accumulator instruction , DAA Decimal Adjust Accumulator...

DAA Decimal Adjust Accumulator Instruction This  instruction adjusts the contents  of the accumulator  into BDC (Binary Coded Decimal )  form  after a BCD  addition. It should

Differentiate between limiting and known errors, Q.   With suitable example...

Q.   With suitable examples differentiate between limiting and known errors. Sol. Limiting Errors (Guarantee Errors): The accuracy and precision of an instrument depends upon

Illustrate differential phase-shift keying, Q. Illustrate Differential phas...

Q. Illustrate Differential phase-shift keying? In order to eliminate the need of a local carrier, DPSK has been developed in which the receiver uses the received signal to act

Determine the mmf of the exciting coil, Q. For themagnetic circuit shown in...

Q. For themagnetic circuit shown in Figure, neglecting leakage and fringing, determine the mmf of the exciting coil required to produce a flux density of 1.6 T in the air gap. Them

What is meant by microcontroller, What is meant by microcontroller? A d...

What is meant by microcontroller? A device which having the microprocessor with integrated peripherals like memory, serial ports, parallel ports, timer/counter, interrupt contr

Define capacitor construction, Define Capacitor Construction In its mo...

Define Capacitor Construction In its most elementary state a capacitor having of two metal plates separated by a certain distance d, in among the plates lies a dielectric mate

Explain braking mode of rotating machines, Q. Explain braking mode of rotat...

Q. Explain braking mode of rotating machines? The braking mode has both mechanical and electric energy input. The total input is dissipated as heat. The machine is driven by th

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