Friday, March 22, 2013

Magnetic Field Theory

When a voltage applied on coil then electro motive force induced in primary circuit. When electro motive force applied on secondary coil then it induced current and these current is called induced current.
According to Magnetic flux, a magnetic line passes on surface and penetrates the magnetic area. When a magnetic field applied on the coil then induced Magnetic Flux through a Coil and total number of magnetic lines of forces passing through a magnetic area in circuit. The SI Unit of Magnetic Flux is Weber.   Magnetic Flux Equation defines as measure strength of magnetic field around a magnet. Please express your views of this topic Dipole Magnetic Field by commenting on blog.

In this a core is used it is magnetic core and when it is induced in magnetic field then current induced in circuit and similarly if current induced in circuit then magnetic field produces in circuit.
Magnetic flux density defines as magnitude of magnetic field per unit area. In a closed surface area magnetic field induced in circuit is zero. Magnetic Induction Lighting is the example of magnetic flux property in lamp.  If magnetic flux lines passing through a surface in one direction then it is positive and when magnetic lines of forces passes in opposite direction then it show negative direction in magnetic flux.

The amount of magnetic lines of forces passing through perpendicular in the direction then it is called magnetic flux density. The Units of Magnetic Flux Density is Tesla. Magnetic flux density is also called magnetic induction. Magnetic flux density defines as multiplication of magnetic field strength and magnetic permeability. Magnetic flux density is a vector quantity and it shows magnitude and direction both.
Magnet used has two poles north pole and South Pole. The Magnetic flux of lines formed in magnetic field and they flow from the North Pole to the South Pole in the direction and formation of closed loop in the system. If same poles touching each other then repel occurs in magnet and if both opposite poles touches each other then attraction occurs in magnet.


Having problem with cross product formulas keep reading my upcoming posts, i will try to help you.

When an induced electric current applied in magnetic area then it produces magnetism property and similarly when a magnetic line of forces or magnetic flux applied on electric field then electro motive forces produces in circuit.
Magnetic field and electric field are perpendicular to each other and parallel to propagation of waves. We use Thumb Rule for measuring the direction of magnetic field, direction of electric field and direction of propagation of waves.

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