English

State SI unit of Magnetization.

Advertisements
Advertisements

Question

State SI unit of Magnetization.

Very Short Answer
Advertisements

Solution

The SI Unit of Magnetization is Am−1 in SI system.

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Magnetic materials - Long Answer

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

State formula and S.I. unit of Magnetization.


Find the magnetization of a bar magnet of length 10 cm and cross-sectional area 4 cm2, if the magnetic moment is 2 Am2.


A long, straight wire carries a current i. The magnetising field intensity H is measured at a point P close to the wire. A long, cylindrical iron rod is brought close to the wire, so that the point P is at the centre of the rod. The value of H at P will ______________ .


The magnetic field B and the magnetic intensity H in a material are found to be 1.6 T and 1000 A m−1, respectively. Calculate the relative permeability µr and the susceptibility χ of the material.


Assume that each iron atom has a permanent magnetic moment equal to 2 Bohr magnetons (1 Bohr magneton equals 9.27 × 10−24 A m2). The density of atoms in iron is 8.52 × 1028 atoms m−3. (a) Find the maximum magnetisation I in a long cylinder of iron (b) Find the maximum magnetic field B on the axis inside the cylinder.


At a certain temperature, a ferromagnetic material becomes paramagnetic. What is this temperature called?


Answer the following question.
Define the term "Intensity" in the photon picture of electromagnetic radiation.


What is the magnetization of a bar magnet having a length of 6 cm and the area of cross-section 5 cm2?


A magnetic material of susceptibility 3 × 10−4, and magnetic intensity is 4 × 10−4 Am−1. Then The magnetization in the units of Am−1 is ______.


What does the ratio of magnetization to magnetic intensity indicate? 


A solenoid has a core of material with relative permeability 500 and its windings carry a current of 1 A. The number of turns of the solenoid is 500 per meter. Calculate the magnetization of the material. 


A magnet of magnetic moment 3Am2 weighs 75 g. The density of the material of the magnet is 7500 kg/m3. what is magnetization? 


Derive the relation between magnetic field intensity(H) and magnetization(M) for a magnetic material placed in a magnetic field. 


The magnetic susceptibility is given by ______


Coercivity of a magnet where the ferromagnet gets completely demagnetized is 6 x 103 Am-1. The minimum current required to be passed in a solenoid having 2000 turns per metre, so that the magnet gets completely demagnetized when placed inside the solenoid is ____________.


The permeability of a metal is 0.01256 TmA- 1  What is its relative permeability?


The magnetic field (B) inside a long solenoid having 'n', turns per unit length and carrying current 'I' when iron core is kept in it is (`mu_0` = permeability of vacuum, `chi` = magnetic susceptibility) ____________.


A magnet of magnetic moment 6 Am2 weighs 65 g. The density of the material of the magnet is 6500 kg/m3. What is the magnetization?


A magnetizing field of 5000 A/m produces a magnetic flux of 4 x 10-5 Wb in an iron rod of cross-sectional area 0.4 cm2. The permeability of the rod in Wb/A-m, is ______.


SI Unit of Magnetization is ____________.


Two parallel wires of equal lengths are separated by a distance of 3m from each other. The currents flowing through first and second wire is 3A and 4.5A respectively in opposite directions. The resultant magnetic field at the mid-point of both wire is (µ0 = permeability of free space).


The dimensions of the relative magnetic permeability of the substance are ______.


The magnetic susceptibility of paramagnetic materials is ____________.


A bar magnet having length 5 cm and area of cross-section 4cm2 has magnetic moment 2Am2. If magnetic susceptibility is 5 x 10-6, the magnetic intensity will be ____________.


A particle of charge 'q' and mass 'm' moves in a circular orbit of radius 'r' with angular speed `omega`. The ratio of the magnitude of its magnetic moment to that of its angular momentum is ____________.


The variation of intensity of magnetization (I) and applied magnetic field intensity (H) for three magnetic materials A, B, C are shown in the graph. The material A is ____________.


Find the intensity of magnetization of a magnet of moment 4 Am2 which weighs 50 gram. (Density of the material of a magnet = 5000 kg/m3)


A bar magnet has length 3 cm, cross-sectional area 4 cm2, and magnetic moment 6 Am2. The intensity of magnetisation of bar magnet is ______.


Magnetic intensity is given by ______.


If `vec"H"` = magnetic intensity, `chi` = susceptibility, magnetic moment per unit volume `vec"M"` equals ______.


A bar magnet is cut into two equal halves by a plane parallel to the magnetic axis. Of the following physical quantities the one which remains unchanged is ______.

What are the dimensions of χ, the magnetic susceptibility? Consider an H-atom. Guess an expression for χ, upto a constant by constructing a quantity of dimensions of χ, out of parameters of the atom: e, m, v, R and µ0. Here, m is the electronic mass, v is electronic velocity, R is Bohr radius. Estimate the number so obtained and compare with the value of |χ| ~ 10–5 for many solid materials.


Define magnetization.


State unit and dimensions of Magnetic susceptibility.


The magnetization of a bar magnet of length 4 cm, cross-sectional area 1 cm2 and magnetic moment 2 SI units is ______.


The relation between relative permeability (`mu_r`) and magnetic susceptibility (`chi_m`) is:______.


What is the net effect of magnetic dipoles in random orientation?


What is the SI unit of magnetisation?


What is the SI unit of magnetic induction or flux density?


What is the SI unit of magnetic permeability?


Which expression gives the magnetic induction of a solenoid core using relative permeability?


A solenoid has 1000 turns per metre, carries a current of 2 A, and has a core with relative permeability 400. What is its approximate magnetic induction?


Why are soft ferromagnetic materials used in transformer cores?


Why are hard magnetic materials chosen for permanent magnets?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×