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Steel is preferred for making permanent ...

Steel is preferred for making permanent magnets whereas soft iron is preferred for making electromagnets. Explain.

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Steel is preferred for making permanent magnets on account of its high permeability and high coercivity. Soft iron is preferred for making electromagnets on account of low retentivity, low coercivity and low hysteresis loss.
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U-LIKE SERIES-MAGNETISM AND MATTER-VERY SHORT ANSWER QUESTIONS
  1. Where on the surface of earth is the angle of dip zero?

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  2. The horizontal component of the earth's magnetic field at a place is B...

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  3. At a place, the horizontal component of earth's magnetic field is B an...

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  4. The vertical component of earth's magnetic field at a place is sqrt3 t...

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  5. What does the Gauss theorem in magnetism establish ?

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  6. The permeability of a magnetic material is 0.9983. Name the type of ma...

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  7. Which of the following substances are diamagnetic ? Bi , Al , Na , ...

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  8. Which of the following substances are paramagnetic ? Bi, Al, Cu, Ca...

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  9. What are permanent magnets 2 Give one example.

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  10. How does the magnetisation vector of a paramagnetic sample vary with t...

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  11. The susceptibility of a magnetic material is 1.9 xx 10^(-5). Name the ...

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  12. The susceptibility of a magnetic material is - 4.2 xx 10^(-6). Name th...

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  13. A ball of superconducting material is dipped in liquid nitrogen and pl...

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  14. Do individual atoms of a paramagnetic material have permanent dipole m...

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  15. Relative permeability of a material mur = 0.5. Identify the nature of ...

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  16. Relative permeability of a material mur = 400. Identify the nature of ...

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  17. What do you mean by hysteresis ?

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  18. The susceptibility of a magnetic material is - 0.085. Identify the mag...

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  19. Steel is preferred for making permanent magnets whereas soft iron is p...

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  20. Why should the material used for making permanent magnets have high co...

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