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प्रश्न
What is Magnetic intensity?
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उत्तर
The strength of a magnetic field at a point can be given in terms of a vector quantity called magnetic intensity (H).
H = `B_0/mu_0` or `B_0 = mu_0 H`
The SI unit of magnetic intensity is Am−1.
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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.
Give two points to distinguish between a paramagnetic and a diamagnetic substance ?
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
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.
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.
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Answer the following question.
Define the term "Intensity" in the photon picture of electromagnetic radiation.
What does the ratio of magnetization to magnetic intensity indicate?
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The magnetic susceptibility of a paramagnetic material at - 73°C is 0.0075. Its value at - 173°C will be ______.
Relative permeability of nickel is 550, then its magnetic susceptibility will be ____________.
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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?
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The dimensions of the relative magnetic permeability of the substance are ______.
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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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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)
Magnetization of a sample is ______.
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Magnetic intensity is given by ______.
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The earth behaves as a magnet with magnetic field pointing approximately from the geographic ______.
Magnetic permeability is maximum for ______
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.
State unit and dimensions of Magnetic susceptibility.
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How does greater alignment of magnetic dipoles affect magnetisation?
Which expression defines magnetisation?
What is the SI unit of magnetic intensity?
Which expression relates magnetic induction or flux density to magnetic intensity and magnetisation?
What is the SI unit of magnetic induction or flux density?
A solenoid has 1000 turns per metre and carries a current of 2 A. What is its magnetic intensity?
Why are soft ferromagnetic materials used in transformer cores?
Which medical imaging technology uses the magnetic properties of materials?
