Magnetic poles, Physics

Magnetic poles:

The two regions near the ends of a magnet at which the attracting forces appear to be concentrated are called the magnetic poles.
The pole (when freely suspended) which points towards the earth's geographic north pole is called the North Seeking Pole ‘N' (or north pole for short) and that which points to the south geographic pole, the South Seeking Pole ‘S' (or south pole).

2339_magnatic pols.png

It is observed that two north poles repel each other and likewise with two south poles; however a north pole and a south pole will attract each other. This is summarised in the fundamental law of magnetism:

Like Poles Repel, Unlike Poles Attract

To test a specimen for the presence of magnetism it is necessary to observe repulsion. Attraction simply means that the specimen is magnetic but it may not be magnetised. Thus the test for magnetism is repulsion.

 

Posted Date: 9/13/2012 4:50:50 AM | Location : United States







Related Discussions:- Magnetic poles, Assignment Help, Ask Question on Magnetic poles, Get Answer, Expert's Help, Magnetic poles Discussions

Write discussion on Magnetic poles
Your posts are moderated
Related Questions
Angle of banking: The angle made by the line joining the outer raised edge of the road to the inner edge with the horizontal line is called the angle of banking. Let AC rep

How does electricity affect the phosphorus cycle?

Cathode rays are : (1)Protons (2)Electrons      (3)Neutrons (4)alfa -particles Ans; (2)Electrons

Determine the weight of a body. Principle: When a spring is fixed at one end and a force is applied to the other end the stretching of the spring is proportional to the applie

Energy is transmitted in a plane in two mutually perpendicular directions. Example : Wave propagating on the surface of water.

Inertia with a handkerchief and tumbler Spread a handkerchief out on a smooth table top. Place a tumbler full with water near one corner of the handkerchief. Raise the opposite

Explain Simple Harmonic Motion Many repeating motion problems can be solved by taking the displacement as   where d is distance in meters, A is amplitude in meters,

functions of the time base on the C.R.O


Illustrate the c-scan presentation of test specimen? C-mode: The C-scan presentation gives a plan-type (2D) view of the location and size of test specimen characteristics. T