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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

What does the ratio of magnetization to magnetic intensity indicate? - Physics

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प्रश्न

What does the ratio of magnetization to magnetic intensity indicate? 

एका वाक्यात उत्तर
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उत्तर

The ratio of magnetization to magnetic intensity indicates magnetic susceptibility (χ). 

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पाठ 11: Magnetic materials - Very Short Answer

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संबंधित प्रश्‍न

What is Magnetization?


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.


The magnetic intensity H at the centre of a long solenoid carrying a current of 2.0 A, is found to be 1500 A m−1. Find the number of turns per centimetre of the solenoid.


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.


A magnetic material of susceptibility 3 × 10−4, and magnetic intensity is 4 × 104 Am1. Then The magnetization in the units of Am1 is ______.


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. 


Define magnetic intensity.


Explain the magnetization of a 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? 


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 steel wire of length I has a magnetic moment M. It is then bent into a semicircular arc. The new magnetic moment is ______.


Relative permeability of nickel is 550, then its magnetic susceptibility will be ____________.


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 ____________.


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 ____________.


An iron rod is placed parallel to magnetic field of intensity 4000 A/m. The magnetic flux through the rod is 8 x 10-4 Wb and its cross-sectional area is 4 cm2 . The magnetic permeability of the rod in Wb/A - m 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?


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).


A cylindrical magnetic rod has length 5 cm and diameter 1 cm. It has uniform magnetization `5.3 xx 10^3 "A"/"m"^3`. Its net magnetic dipole moment is nearly `(pi = 22/7)`.


The magnetic susceptibility of paramagnetic materials 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 ______.


Two parallel conducting wires of equal lengths placed distance 'd' apart carry currents 'I1' and 'I2' respectively in opposite directions. The resultant magnetic field at the midpoint of both the wires is ______.

0 = permeability of free space.)


The magnetic moment produced in a substance of mass 5 gram is 6 x 10-7 Am2 If its density is 5 g/cm3, then intensity of magnetization in `"A"/"m"` will be ____________.


Magnetic intensity is given by ______.


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


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


Demagnetisation of magnets can be done by ______.

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 ______.

The magnetic susceptibility for diamagnetic materials is ______.

Among which of the following the magnetic susceptibility does not depend on the temperature?

The earth behaves as a magnet with magnetic field pointing approximately from the geographic ______.


An example of a perfect diamagnet is a superconductor. This implies that when a superconductor is put in a magnetic field of intensity B, the magnetic field B inside the superconductor will be such that ______.


State unit and dimensions of Magnetic susceptibility.


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


An iron rod is subjected to a magnetising field of 1200 Am-1 .The susceptibility of iron is 599. Find the permeability and the magnetic field produced. 


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