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Textbook-Solutions-12th-MH

A domain in ferromagnetic iron is in the form of a cube of side length 1 μ m . Estimate the number of iron atoms in the domain and the maximum possible dipole moment and magnetisation of the domain. The molecular mass of iron 55g/mole and is density is 7.9 g / c m 3 7.9 𝑔 / 𝑐 𝑚 3 . Assume that each iron atom has a dipole moment of 9.27 × 10^−24 A m 2 9.27 × 10^-24 𝐴 𝑚 2 .

Textbook-Solutions-12th-MH

The region inside a current carrying toroid winding is filled with Aluminium having susceptibility χ=2.3×10^−5. What is the percentage increase in the magnetic field in the presence of Aluminium over that without it?

Textbook-Solutions-12th-MH

Calculate the gyromagnetic ratio of electron.

Textbook-Solutions-12th-MH

A bar magnet of moment of inertia of 500 g cm^2 makes 10 oscillation per minute in a horizontal plane. what is its magnetic moment if the horizontal component of Earth’s magnetic field is 0.36 gauss?

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