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R G PUBLICATION-MAGNETISM AND MATTER-EXERCISE
- Alnico, an alloy of iron, aluminium, nickel, cobalt and copper are har...
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- What are hard ferromagnetic and soft ferromagnetic materials? Give on...
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- Define curie temperature.
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- Draw the B-H curve for ferromagnetic materials.
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- What is retentivity ?
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- What is coercivity?
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- Write the units of magnetisation and magnetic intensity.
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- What is the nature of magnetic susceptibility.
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- Distinguish between magnetic dipole and electric dipole.
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- What is a magnet?
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- What is sure test of magnetism?
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- Write the value of earth's magnetic field.
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- What are limits of earth's magnetic field?
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- What are limits of earth's magnetic field?
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- Where is the vertical component of earth's magnetic field zero?
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- Can we have a magnet with single pole?
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- What is the significance of Gauss law in magnetism?
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- On what factor pole strength of a magnet depend?
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- Write mathematical form of tangent law in magnetism.
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- Are the two pole of magnet equally strong?
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