Magnetic poles, Physics

Assignment Help:

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.

 


Related Discussions:- Magnetic poles

Object located between the focal point and the mirror, Object Located Betwe...

Object Located Between the Focal Point and the Mirror Ray diagrams are meaningful tools for denoting the location of an image as generates through a concave mirror. To denote t

Dimension of newton, DIMENSION of Newton DIMENSION ? The dimension of...

DIMENSION of Newton DIMENSION ? The dimension of force is [MLT -2 ]

Characteristics of resistance, Characteristics of resistance:- Similar ...

Characteristics of resistance:- Similar amount of current passed by each resistance i.e. I = I1 = I2 = I3 = I4 ........ The sum of potential difference across individual res

Determine electric field inside the capacitor, A constant potential differe...

A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: a) constan

Use of magnesium alloys, Magnesium is the lightest of the structural metals...

Magnesium is the lightest of the structural metals.  While this low density is an attractive property, magnesium also has a high corrosion rate that has often been seen as a disadv

Compound pendulum, the center of oscillation of a meter stick suspended abo...

the center of oscillation of a meter stick suspended about a transverse axis is located at 10 cm mark. determine at what other positions the meter stick could be suspended and have

Illustrate the principle of carbon dioxide laser in short, Illustrate the p...

Illustrate the principle of carbon dioxide laser in short. Principle of carbon dioxide (CO 2 ) Laser: To get Laser transition between two levels this is necessary to acquire

Right-hand rule, Right-hand rule: A trick for right-handed coordinate ...

Right-hand rule: A trick for right-handed coordinate systems to find out which way the cross product of two 3-vectors will be directed. There are few forms of this rule, and t

Explain the principle and working of a light emitting diode, Define, with t...

Define, with the help of a schematic diagram, the principle and working of a Light Emitting Diode. What criterion is kept in mind whereas choosing the semiconductor material for su

What is the v of he gas, At what temperature would the average speed of hel...

At what temperature would the average speed of helium atoms equal (a)the escape speed from Earth, 1.12 ´ 10 4  m/s, and (b) the escape speed from the Moon, 2.37´ 10 3  m/s? (See Ch

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