Law 1: It states that 'like' magnetic poles repel and 'unlike' poles attract each other. When the two magnts are brought near each other, such that two like poles i.e.N and N or S are S are facing each other, then the two magnets experience a force of repulsion. As against this, if two unlike poles i.e.N and S or S and N are facing towards each other, then they experience a force of attraction and try to attract each other.
Law 2: This law is experimentally proved by Scientist Coulomb and hence also known as Coulomb's Law.
The force (F) exerted by one pole on the other pole is,
1- Directly proportional to the product of the pole strengths.
2- Inversely proportional to the square of the distance between them and
3- Dependent on the nature of medium surrounding the poles.
Mathematically this law can be expressed as,
where M1 and M2 are the pole strengths of the poles while 'd' is the distance between the two poles.
where K is constant which depends on the nature of the surrounding.
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