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प्रश्न
State formula and S.I. unit of Magnetization.
Write SI unit and dimensions Magnetization.
उत्तर
Magnetization = `"Net magnetic moment"/"Volume"`
It is a vector quantity.
Unit Am-1 and Dimension ` ["M"^0 "L"^(-1)"T"^0 "I"^1]`.
∴ `"M" = "m"_("net")/"Volume"`
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संबंधित प्रश्न
Define Magnetization.
Define Magnetic intensity.
Give two points to distinguish between a paramagnetic and a diamagnetic substance ?
Mark out the correct options.
(a) Diamagnetism occurs in all materials.
(b) Diamagnetism results from the partial alignment of permanent magnetic moment.
(c) The magnetising field intensity, H, is always zero in free space.
(d) The magnetic field of induced magnetic moment is opposite the applied field.
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.
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 is the magnetization of a bar magnet having a length of 6 cm and the area of cross-section 5 cm2?
The moment of a magnet (15 cm × 2 cm × 1 cm) is 1.2 A-m2. What is its intensity of magnetization?
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.
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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 ____________.
An electron moves in a circular orbit with uniform speed v. It produces a magnetic field B at the centre of the circle. The radius of the circle is [µ0 = permeability of free space, e = electronic charge]
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Relative permeability of nickel is 550, then its magnetic susceptibility will be ____________.
For an isotropic medium B, µ, H and M, are related as (where B, µ0, H and Mz have their usual meaning in the context of magnetic material) ____________.
The magnetization of bar magnet of length 5 cm, cross-sectional area 2 cm2 and net magnetic moment 1 Am2 is ______.
A solenoid has core of a material with relative permeability 500 and its windings carry a current of 2 A. The number of turns of the solenoid is 500 per metre. The magnetization of the material is ______.
An iron rod of cross-sectional area 6 sq. cm is placed with its length parallel to a magnetic field of intensity 1200 Alm. The flux through the rod is 60 x 10-4 Wb. The permeability of the rod 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?
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 ____________.
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)`.
Assertion: Susceptibility is defined as the ratio of intensity of magnetisation I to magnetic intensity H.
Reason: Greater the value of susceptibility, smaller the value of intensity of magnetisation I.
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The relative magnetic permeability (`mu_"r"`) of a substance is related to its susceptibility (`chi`) as ____________.
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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 ______.
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 ____________.
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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 ______.
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.
What is magnetization?
What is magnetic susceptibility?
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 ______.
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:______.
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.
