English

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 ______.

Advertisements
Advertisements

Question

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 ______.

Options

  • 12 × 108 

  • 1.33 × 108 

  • 0.75 × 10−8

  • 14 × 10−8 

MCQ
Fill in the Blanks
Advertisements

Solution

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 12 × 108.

Explanation:

`M = chiH = 3 xx 10^-4 xx 4 xx 10^-4 = 12 xx 10^-8 Am^-1`

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Magnetic materials - MCQ’S

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

What is Magnetization?


The magnetic moment of a magnet of dimensions 5 cm × 2.5 cm × 1.25 cm is 3 Am2. Calculate the intensity of magnetization.


What is Magnetic intensity?


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 ______________ .


Which of the following pairs has quantities of the same dimensions?
(a) Magnetic field B and magnetising field intensity H
(b) Magnetic field B and intensity of magnetisation I
(c) Magnetising field intensity H and intensity of magnetisation I
(d) Longitudinal strain and magnetic susceptibility


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?


When a plate of magnetic material of size 10 cm × 0.5 cm × 0.2 cm (length, breath, and thickness respectively) is located in a magnetizing field of 0.5 × 104 A/m-1, then a magnetic moment of 0.5 Am2 is induced in it. Find the magnetic induction in the plate.


What does the ratio of magnetization to magnetic intensity indicate? 


Explain the magnetization of a material. 


The magnetic susceptibility of a paramagnetic material at - 73°C is 0.0075. Its value at - 173°C will be ______.


An iron rod is placed parallel to magnetic field of intensity 2000 A/m. The magnetic flux through the rod is 6 × 10−4 Wb and its cross-sectional area is 3cm2. The magnetic permeability of the rod in `"Wb"/("A" - "m")` is ____________.


A bar magnet has coercivity 6 x 103 Am-1. It is desired to demagnetise it by inserting it inside a solenoid 10 cm long and having 40 turns. The current that should be sent through the solenoid is ____________.


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?


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).


If Mz = magnetization of a paramagnetic sample, B external magnetic field, T = absolute temperature, C = curie constant then according to Curie's law in magnetism, the correct relation is ______.


The magnetic moment produced in a sample of 2 gram is 8 x 10-7 A/m2. lf its density is 4g/cm3, then the magnetization of the sample 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 ____________.


Magnetization of a sample is ______.


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 ______.


Magnetic lines of force due to a bar magnet do not intersect because ______.


Demagnetisation of magnets can be done by ______.

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 ______.

One can define ...A... of a place as the vertical plane which passes through the imaginary line joining the magnetic North and the South–poles. Here, A refers to ______.


The ratio of intensity of magnetisation and magnetising field is called ______.

Susceptibility is positive and large for a ______.

If μ0 is absolute permeability of vacuum and μr is relative magnetic permeability of another medium, then permeability μ of the medium is ______.

Which of the following is not correct about relative magnetic permeability (μ,)?

Define magnetization.


A bar magnet has length 3 cm, cross-sectional area 2 cm3 and magnetic moment 3 Am2. The intensity of magnetisation of bar magnet is ______.


State unit and dimensions of Magnetic susceptibility.


The dimensions of magnetic intensity are ______.


For a medium of permeability µ, its magnetic susceptibility x is [µ 0 = permeability of vacuum]


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


The magnetic susceptibility of iron is 5499. The relative permeability of iron will be ______.


How does greater alignment of magnetic dipoles affect magnetisation?


Which expression defines magnetisation?


What is the SI unit of magnetisation?


Which expression relates magnetic induction or flux density to magnetic intensity and magnetisation?


Which expression defines relative 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?


Which medical imaging technology uses the magnetic properties of materials?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×