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Why should the material usesd for making...

Why should the material usesd for making permanent magnets have high coercivity?

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MODERN PUBLICATION-CLASSIFICATION OF MAGNETIC MATERIALS-EXERCISE
  1. Why should the material usesd for making permanent magnets have high c...

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  2. Explain the terms magnetic intensity. Give their SI units.

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  3. Explain the terms intensity of magnetisation. Give their SI units.

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  4. Define the term magnetic flux.

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  5. Explain the terms magnetic induction. Give their SI units.

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  6. Define magnetic susceptibility.

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  7. Explain the terms magnetic permeability. Give their SI units.

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  8. Show diagrammatically the behavoiur of magnetic field lines in the pre...

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  9. Show diagrammatically the behavoiur of magnetic field lines in the pre...

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  10. What is the difference between ferromagnetic, pawramagnetic and diamag...

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  11. What is the difference between ferromagnetic, pawramagnetic and diamag...

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  12. What is the difference between ferromagnetic, pawramagnetic and diamag...

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  13. What is the difference between ferromagnetic, pawramagnetic and diamag...

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  14. Differentiate between diamagnetic and paramagnetic substances.

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  15. How are magnetic materials classified?

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  16. What are dia, para and ferromagnetic substances? Give one example of e...

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  17. Classify materials on the baiss of their behaviour in a magnetic field...

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  18. Explain the magnetism on the basis of atomic theory.

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  19. How are materials classified according to their behaviour in a magneti...

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  20. Two similar bars made from two different materials P and Q are placed ...

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  21. Two similar bars made from two different materials P and Q are placed ...

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