Skip to main content

Relation between B and H in magnetic field


The flux density B =Φ/A

magnetising force H.

Thus greater the magnetising force H, greater will be the magnetic



H = constant = 4 π x 10-⁷

flux density produced in the mate


Thus in a vacuum, air or non-magnetic material the ratio B/H is constant.


This constant is called the permeability of free space or magnetic space constant 

It is denoted by μ0


Its unit is Henry/metre (H/m)


μ0=B/H  = 4π × 10-⁷


B = μoH 

 It was Relation between B and H in magnetic field 


Comments

Popular posts from this blog

What is two transistor model of scr ? Explain SCR

  Power electronics Two Transistor Model of SCR full explain and pdf. Basic operating principle of SCR, can easily be understood by the two transistor model of SCR , as it is a combination of p and n layers. This is a pnpn thyristor. If we bisect it through the dotted line then we will get two transistors i.e. one pnp transistor with J 1 and J 2 junctions and another is with J 2 and J 3 junctions as shown in figure below. The relation between the collector current and emitter current is shown below Here, I C is collector current, I E is emitter current, I CBO is forward leakage current, α is common base forward current gain and relationship between I C and I B is Where, I B is base current and β is common emitter forward current gain. Let’s for transistor T 1 this relation holds And that for transistor T 2 Now, by the analysis of two transistors model we can get anode current, From equation (i) and (ii), we get, If applied gate current is I g then cathode current will b...

Gtu sem 5th python programming ( 3151108 ) question paper download

Python programming (3151108)exam questions paper summer 2022. Gtu python programming paper download. plication (MCA) , PDDC , Diploma Of pharmacy (D.pharm) , Diploma engineering. While you searched for download GTU B.E. CIVIL SEM 5 3151108 Python Programming gtupaper.in past exam papers.You might have gone to other sites on the internet along with the official gtu site i.e. gtu.ac.in but you must be confused there with your download GTU B.E. CIVIL SEM 5 3151108 Python Programming gtupaper.in past exam papers. AS you dont know the subject code of GTU B.E. CIVIL SEM 5 3151108 Python Programming gtupaper.in .That`s what we were filling lack of. So we created sudybudyy.in   Hey students, simply long press on image to download , you get download image option.   Here, on gtupaper.in You don`t need to remember your GTU B.E. CIVIL SEM 5 3151108 Python Programming gtupaper.in subject code.You just select your branch from be , bpharm , mba , mca , dpharm , mpharm , pddc , me and diploma...

What is unit vector :- explain unit vector

Electromagnetic fields Unit vector- A unit vector has a function to indicate the direction. Its magnitude is always unity, irrespective of the direction which it indicates and the co-ordinate system under consideration. Thus for any vector, to indicate its direction a unit vector can be used. Consider a unit vector āoA in the direction of OA as shown in o the Fig. This vector indicates the direction of OA but its magnitude is unity. Fig Unit vector aOA So vector OA can be represented completely as its magnitude R and the direction indicated by unit vector along its direction. ŌĀ = |OA| āOA =R āOA āOA=1