Bar magnet, Physics

Assignment Help:

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)

 

 


Related Discussions:- Bar magnet

Describe positive rays, Positive rays are sometimes called as the canal wav...

Positive rays are sometimes called as the canal waves. These were found by Goldstein. If the cathode of a discharged tube has holes in it and the pressure of the gas is around 10-3

Determine the magnitude, Determine the Magnitude The cantilevered beam...

Determine the Magnitude The cantilevered beam shown below has two force couples acting on it as shown.  The value of C1 in Newtons is given in P25.  Determine the magnitude of

The number of electrons in an atom of an element is equal, The number of el...

The number of electrons in an atom of an element is equal to its: (1) Atomic weight (2) Atomic number (3) Equivalent weight (4)  Electron affinity Ans: Atomic weigh

Compton effect, Compton effect (A.H. Compton; 1923) An effect which de...

Compton effect (A.H. Compton; 1923) An effect which demonstrates that photons (the quantum of electromagnetic radiation) contains momentum. At a stationary particle, a photon

Car and truck in head on collision, Car and Truck in Head on Collision ...

Car and Truck in Head on Collision Inelastic Collision : Collisions among objects are governed through laws of energy and momentum. Although a collision occurs inside an isol

Phenomenon of interference of water waves, Phenomenon of interference of wa...

Phenomenon of interference of water waves 1. Arrange two identical adjacent pins (S1 and S2) vibrating in a ripple tank with the same frequency. 2. In the figure S and S ar

What are the safety terms to be inspected on battery, What are the safety t...

What are the safety terms to be inspected on battery? Ans: Safety terms to be checked on battery are full complements of battery box fixing bolts and its tightness, observat

Anekardhi shabdh, list of anekardhi shabdh with examples

list of anekardhi shabdh with examples

What are plastics, Plastics are (A) Good conductors of heat. (B) ...

Plastics are (A) Good conductors of heat. (B) Good conductors of electricity. (C) Bad conductors of electricity. (D) High density. Ans: Plastics are Bad

Muscles, what are the 15 major muscles in the body?

what are the 15 major muscles in the body?

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