Magnetism - basic concepts, Physics

Magnetism - Basic concepts:

1. Pole strength: The ability of a pole  of  a magnet to attract or repel another magnetic pole is called its pole strength. Units : A-m

2. Magnetic Permeability : Magnetic Permeability ( m ) of a medium is defined as its ability to allow the magnetic lines of force to pass through it or to  allow itself to be influenced by magnetic field.

Units : Henry/meter. 

3. Relative Permeability :The ratio of the permeability of a medium to the permeability of free space is defined as 'relative permeability' ( m r ). Relative permeability is a ratio, it has no units.

4. Unit magnetic pole : The unit magnetic pole is defined as that pole which repels an identical pole at 1 meter distance with a force of 10-7 N.

5. Magnetic field induction (or) Magnetic flux density : Magnetic field induction or magnetic flux density is defined as the magnetic flux passing through a unit normal area = weber/(meter)2. = tesla 

6. Magnetic field induction due to a magnet at point 

The magnetic field induction due to a magnet at a point is  defined as the force acting on a unit north pole   placed at the point. Units : N/A - m

7. Intensity of magnetic field: The intensity of a magnetic field (H) at a point  is defined as the force acting on a unit north pole placed at the point, independent of the medium.  Units: A/ m

8. Magnetic Moment (M): Magnetic moment (m) of a bar magnet is measured by the product of its pole strength (m) and its magnetic length.

 

Posted Date: 10/15/2012 9:30:16 AM | Location : United States







Related Discussions:- Magnetism - basic concepts, Assignment Help, Ask Question on Magnetism - basic concepts, Get Answer, Expert's Help, Magnetism - basic concepts Discussions

Write discussion on Magnetism - basic concepts
Your posts are moderated
Related Questions
Echo: The sound heard after reflection from an obstacle is known as echo.

the maximum height attained by a projectile and its horizontal range are equal to each other if the projectile projected at an angle [theta] given by ?

What is dispersion? Dispersion within optics consider as the change in phase velocity of an electromagnetic wave along with wavelength. Conversely, when there is a variation o

A bubble, located 0.200m beneath the surface of a beer, rises to the top. The air pressure at the top is 1.01 x 10^5pa.Assume that at the density of beer is that same as that fresh

Coupling  Capacitor  (Cc) It's  an  electrolytic  capacitor  used  to  couple  one  stage  of amplification to the next stage or load. It allows only amplified ac signal to pas

Why does the charge on the outer surface of a parallel plate capacitor doesn't change when it is connected by a battery. only inner surface charge gets affected. Why??

what is the meaning of electrostatics and what is the uses of electrostatics and where is the use of electrostatics and why do we use electrostatics and derive its derivation also

Moment of Inertia of Rigid Bodies : For a continuous mass distribution like found in a hard object, we remove the summation of Eq. (ii) by an integral. If the object is separated i

Kohlrausch's law (F. Kohlrausch): If a salt is dissolved into water, the conductivity of the solution is the total of two values one based on the positive ions & the other dep

A cubical block of wood weighing 200g has a lead piece fastened underneath. Find the mass of the lead piece which will just allow the block to float in water. Exact gravity of wood