Magnetic susceptibility and ferromagnetic substances, Physics

Magnetic Susceptibility and Ferromagnetic Substances:

Magnetic Susceptibility: The magnetic susceptibility (c) of a substance is defined  as the ratio of the intensity of magnetisation (I) and the intensity of the applied magnetic field (H). It has no units 

Magnetic retentivity: Retentivity of  a magnetic material is a property by virtue of which it retains certain amount of intensity of magnetisation even after the removal of applied magnetic field.

Diamagnetic Substances: Diamagnetic Substances are those in which the resultant magnetic moment of individual atoms is zero. Ex: Copper, Bismuth, Air, Water, Gold, Alcohol, Mercury, Hydrogen.

Para magnetic Substances (Mar 99): Paramagnetic Substances are those in which the resultant magnetic moment of individual atoms is not zero.

Ferromagnetic Substances: Ferromagnetic substances are those in which the resultant magnetic moments of individual atoms align themselves in parallel because of a special effect present in  them giving rise to spontaneous magnetisation. Ex: Iron, Cobalt, Nickel, Gadolinium, Dysprosium

Domain: Domain in a ferro magnetic specimen is a small local region in which all the magnetic dipoles align parallel to each other giving to certain magnetisation with in the domain.

 

 

Posted Date: 10/16/2012 2:57:58 AM | Location : United States







Related Discussions:- Magnetic susceptibility and ferromagnetic substances, Assignment Help, Ask Question on Magnetic susceptibility and ferromagnetic substances, Get Answer, Expert's Help, Magnetic susceptibility and ferromagnetic substances Discussions

Write discussion on Magnetic susceptibility and ferromagnetic substances
Your posts are moderated
Related Questions
What are a quarter wave plates? Get the expressions for its thickness in terms of refractive indices for E-ray, O-ray and wavelength?

Q.   Describe the construction and working of Michelson Interferometer. Explain how you will determine the wavelength difference of two components of a line by Michelson Interferom

Two blocks are tied together by a horizontal string and pulled a distance of 2.7 m across an air hockey table with a constant force of 35 N. The force is directed at an upward angl


Explain the Optical Instruments? The lenses you use most often are the ones in your eyes. The front of your eye has a convex lens whose focal length can be changed by the muscl

A ball of mass 0.7 kg is dropped vertically from a height of 10 m onto a concrete floor. The ball is observed to bounce a number of times before coming to rest. The coefficient of

If a traveling wave is a sin or cos function of (x± vt) the wave than it is said to be harmonic or plane progressive wave.

Define Radioactive Dating Half-life measurements of radioactive elements in rocks and fossils can be used to determine the age of the specimen. One of the most common types of

Verify Gauss' theorem in electrostatics. Apply it to search the electric field strength at a point near a long straight conductor carrying electric charge.

does lights of different wavelengths help us to see different colour