Bar magnet, Physics

What is magnetic moment of a bar magnet

1. When a bar magnet of pole strength (m) and length (2l) is suspended freely in air,it always turns along the magnetic north (N) and South poles (S) of the earth.

2. This is because the bar-magnet is acted upon by 'a' couple constituted by two parallel forces separated by a distance 2l equal to the length of the magnet.

3. Magnetic moment (M) of a bar-magnet is measured by the product of its pole- strength (m) and its magnetic length (2l)  i.e M=2l

4. Units : Ampere-metre2 (A-m2)

 

 

Posted Date: 10/16/2012 3:11:34 AM | Location : United States







Related Discussions:- Bar magnet, Assignment Help, Ask Question on Bar magnet, Get Answer, Expert's Help, Bar magnet Discussions

Write discussion on Bar magnet
Your posts are moderated
Related Questions
which circular path in any time in any mation

Three similar coils, each having a resistance of 8Ω and an inductive reactance of 8Ω are connected (a) in star and (b) in delta, across a 415V, 3-phase supply. Calculate

Radioactive Decay Series The sequential decay of a given nucleus results in the production of a series of nuclei or elements. This series of elements thus formed is known as a

Phase in sinusoidal functions or in waves has two different, but closely related, meanings. One is the initial angle of a sinusoidal function at its origin and is sometimes called

Simultaneity principle The principle that all of the frames of reference will have invariant simultaneity; i.e., two events perceived as simultaneous (that is, having the simi

What are the General Properties of Magnet

Fish soup is prepared in a hemispherical copper bowl of diameter 40 cm. The bowl is placed into the water of a lake to cool down and ?oats with 10 cm of its depth immersed.

A 350-Hz tuning fork is held over the end of a pipe that is inserted into water. What is the spacing between the resonance lengths of the pipe if the speed of sound is 348 m/s


BALLISTIC FLIGHT:  "A flight in which a projectile is given a starting push and is permitted to move freely due to inertia and under the action of gravity is known as ballistic