CONCEPT OF MAGNETIC CIRCUIT

Magnetic Circuit parameter

1. Flux(Φ)
2. Flux Density
3. MMF
4. Reluctance
5. Magnetic Field Intensity
6. Permeability

• Electrical Circuit Parameter

1. Current
2. Flux Density
3. EMF
4. Resistance
5. Electric Field Intensity
6. Permittivity
   
   

1. INTRODUCTION OF MAGNETISM:

Magnet have two opposite magnetic poles, which either attract or repel each other. These poles namely known as south or north pole. The magnetic force between these two poles are directly proportional to the magnetic strength of the poles and inversely proportional to the square of the distance.

F ∝ m₁ m_2    &   F ∝ 1 / d2

^or  F ∝ m1 m2 / d2    

Therefore, 

F ∝ m1 m2 / 4πµd2  

Where,

 m_{1 and} m_{2 denotes the magnetic strength of the two poles.}

_{µ - Permeability of any material.}

_{d- Distance between two poles}

• _{PROPERTY OF THE MAGNETIC MATERIAL:}

1. _{Any Magnet will attract iron and its alloys.}
2. The magnet has two poles, when it is kept freely, it comes to rest directing north and south directions.The end, which points toward the north called as north pole and the other, which directs toward the south, called as south pole.
3.  Like/Same poles repel and unlike poles attract each other.
4. If a magnet will be broken in pieces, each piece will act as separate magnet.
5. Magnet can imparts its property to any material.
6. Magnet will lose its property is following case:

• If heated, hammered or dropped from height.

2. MAGNETIC FIELD: 

 The area around the magnet or magnet pole is defined as magnetic field. 

Magnetic field curves are observable (above photo), these curve lines are called as magnetic lines of force. Magnetic force of line travels from north to south in AIR and from south to north in a material.

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