(B) Volume of the rod $V = 10 \times 0.5 \times 0.2 \, cm^3 = 1 \, cm^3 = 10^{-6} \, m^3$.Given magnetic field strength $H = 0.5 \times 10^4 \, Am^{-1

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(B) Volume of the rod $V = 10 \times 0.5 \times 0.2 \, cm^3 = 1 \, cm^3 = 10^{-6} \, m^3$.Given magnetic field strength $H = 0.5 \times 10^4 \, Am^{-1}$ and magnetic moment $M = 5 \, Am^2$.Intensity of magnetization $I = \frac{M}{V} = \frac{5}{10^{-6}} = 5 \times 10^6 \, Am^{-1}$.Magnetic induction $B$ is given by $B = \mu_0(I + H)$.Since $I \gg H$,we have $B \approx \mu_0 I$.$B = 4\pi \times 10^{-7} \times 5 \times 10^6 = 20\pi \times 10^{-1} = 2\pi \approx 6.28 \, T$.

Class 12 Physics Magnetism and Matter Magnetization, Magnetic Induction Susceptibility

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$A$ rod of ferromagnetic material with dimensions $10 \, cm \times 0.5 \, cm \times 0.2 \, cm$ is placed in a magnetic field of strength $0.5 \times 10^4 \, Am^{-1}$. As a result,a magnetic moment of $5 \, Am^2$ is produced in the rod. The value of magnetic induction will be.... $T$

A
$0.54$
B
$6.28$
C
$0.358$
D
$2.591$

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Magnetism and Matter

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Magnetization, Magnetic Induction Susceptibility

$A$ bar of iron having magnetic moment $2.4 \text{ Am}^2$ weighs $66 \text{ g}$. If the density of the material of the bar is $7700 \text{ kg/m}^3$,the intensity of magnetisation in $\text{Am}^{-1}$ is

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An iron rod is placed parallel to a magnetic field of intensity $2000 \text{ A/m}$. The magnetic flux through the rod is $6 \times 10^{-4} \text{ Wb}$ and its cross-sectional area is $3 \text{ cm}^2$. The magnetic permeability of the rod in $\text{Wb/(A} \cdot \text{m)}$ is:

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An iron rod is placed parallel to a magnetic field intensity of $1000 \text{ A/m}$. The magnetic flux through the rod is $3 \times 10^{-4} \text{ Wb}$ and its cross-sectional area is $1.5 \text{ cm}^2$. The magnetic permeability of the rod in $\text{Wb/(A} \cdot \text{m)}$ is:

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$A$ domain in a ferromagnetic substance is in the form of a cube of side length $2 \mu m$. It contains $4 \times 10^{14}$ atoms and each atomic dipole has a moment of $16 \times 10^{-24} \text{ A m}^2$. The magnetization of the domain is . . . . . . .

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Magnetization of the sample is defined as:

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$A$ rod of ferromagnetic material with dimensions $10 \, cm \times 0.5 \, cm \times 0.2 \, cm$ is placed in a magnetic field of strength $0.5 \times 10^4 \, Am^{-1}$. As a result,a magnetic moment of $5 \, Am^2$ is produced in the rod. The value of magnetic induction will be.... $T$

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$A$ bar of iron having magnetic moment $2.4 \text{ Am}^2$ weighs $66 \text{ g}$. If the density of the material of the bar is $7700 \text{ kg/m}^3$,the intensity of magnetisation in $\text{Am}^{-1}$ is

An iron rod is placed parallel to a magnetic field of intensity $2000 \text{ A/m}$. The magnetic flux through the rod is $6 \times 10^{-4} \text{ Wb}$ and its cross-sectional area is $3 \text{ cm}^2$. The magnetic permeability of the rod in $\text{Wb/(A} \cdot \text{m)}$ is:

An iron rod is placed parallel to a magnetic field intensity of $1000 \text{ A/m}$. The magnetic flux through the rod is $3 \times 10^{-4} \text{ Wb}$ and its cross-sectional area is $1.5 \text{ cm}^2$. The magnetic permeability of the rod in $\text{Wb/(A} \cdot \text{m)}$ is:

$A$ domain in a ferromagnetic substance is in the form of a cube of side length $2 \mu m$. It contains $4 \times 10^{14}$ atoms and each atomic dipole has a moment of $16 \times 10^{-24} \text{ A m}^2$. The magnetization of the domain is . . . . . . .

Magnetization of the sample is defined as:

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