Magnetic circuits part -1

        Now we are actually going to see about the laws governing and working of magnetic circuit and its acting and the stuffs related to that.

CIRCUIT:  

      The circuit which is traced by the path of magnetic circuit or when the circuit followed by the path of magnetic flux is called as magnetic circuit.

MAGNETIC FIELD:

      Again the same !! Energy conversion , I mean whenever the current flows through a conductor it produces a field that is nothing but a magnetic field  , the apt Statement is magneto-motive force per unit length .
 
MAGNETO MOTIVE FORCE(MMF):

      It is nothing but a a kind of force have the ability to produce a field or simply the product of current and the number of turns in the circuit .

Magnetic flux(ะค):

   Number of lines of force existing in a particular magnetic field. Its unit is weber.

 Magnetic flux density(B) ---
 It is nothing but magnetic flux per unit area. Its unit is weber per meter square or tesla.

Reluctance(S):

      It is a physical parameter that resist the flow of flux or we can say it is  ratio of magneto-motive force to the flux in the circuit.This reluctance depends the permeability, length, and the area of the material.

Permeability:

      It is measure of ability of the material that supports the magnetic field with in it or it is a measure degree of magnetization of material when it is respond to the given to magnetic field.

Action of the circuit

      Let us consider a series circuit . The circuit has N number of turns and l meter length and  A be the area .
       When the supply is given then the current will flows through the coil of N turns produces a magnetic flux as I already told, this flux always flows in the middle of the  circuit .
        If u compare the circuit with the electrical system u can easily remember it. In electrical system the voltage cause the current to flow and the flow is resist by the physical parameter resistance likewise here the magneto-motive force makes the flux to flow but it is opposed by the reluctance.

Air gap
 
      In magnetic circuit we have another member that is nothing but an air gap it also plays a vital role in the circuit .
Since in a magnetic circuit air also act as a conducting medium for the flux and the permeability of the air is given as 1 .

Fringing effect

    When ever there is an air gap in the magnetic circuit the flux through the circuit get fringes out and the amount of flux fringing in the air is more when the air gap is more that is enlargement of the air gap decrease the strength of the flux in the material.

Leakage

      No one  can't be 100% am I correct friends ?? Yes each and everything has some draw backs leakage is an unexpected matter that happens in the magnetic circuit .  Even though everything is correct some amount of energy I mean the flux get leaked through the air.

      Till this we have seen the explanation for some basic terms which are often used in this system
Now it's a real time to get in. Why we need this???

If you  questioned everything in this manner you can find the result. Yea it's true . I am saying this not only for the subject for your life too .The answer for the need of magnetic circuit is to convert and to transmit the energy we are going for the magnetic circuit which collectively known as electromagnetic circuit.

      The electromagnetic circuit is the one that produce the electrical energy in the power station(Generation of energy) and that is  is the one which is responsible for the energy transmission(Transformer for transmitting the energy) surely we will explain about these two wonderful topics we have more time.coming to the point the electromagnetic circuit is nothing but the conversion of magnetic energy to the electrical energy.

Electromagnetic induction

     The law states that it is possible to induce the emf in a conductor whenever the conductor is placed in an alternating magnetic field or the moving conductor in the stationary the magnetic field.

POSTED BY SUNDHAR

   
      We are ready to solve problems related to magnetic circuit also, surely we can make it possible within 24 hours even you are welcome to make test on us we are ready to do it .


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