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Which of the following magnetic materials can be easily magnetized in both direction?

A. Soft magnetic materials

B. Hard magnetic materials

C. High hysteresis loss materials

D. Low hysteresis loss materials

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  1. A 200-watt lamp working for 24 hours will consume approximately _____ units.
  2. If the value of 0 a conductor is 1/234 per oCa then the value of 18is
  3. What is the SI unit of magnetic flux?
  4. It is the reciprocal of reluctance and implies the case of readiness with which magnetic flux is developed.
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    When the current flowsa the magnetic field . conductor is in what direction?
  6. In electro-mechanical conversion devices like generators and motors the reason why a small air gap is…
  7. Defined as the number of lines per unit area through any substance in a plane at right angles to the…
  8. If two similar charges 1 coulomb each are placed 1 m apart in aira then the force of repulsion is
  9. Hysteresis refers to the ______ between flux density of the material and the magnetizing force applied.
  10. The straight line passing through the two poles of magnet is called
  11. If the distance between two magnetic poles decreases by 2 timesa the force between them
  12. The temperature coefficient of resistance of semiconductors is
  13. The quantity of magnetism retained by a magnetic material after withdrawal of the magnetizing force…
  14. When a wire loop is rotated in a magnetic field the direction of the induced emf changes one in every…
  15. What type of bond is formed when there exists some form of collective interactions between the (negatively…
  16. Permeability means
  17. The total number of magnetic lines of force in a magnetic field is called
  18. The current of electric circuit is analogous to which quantity of a m
  19. Hipernik is an alloy containing __________ iron and __________ nickel.
  20. The permeability of a material having a flux density of 5 Wb/m^2 is 10^-5 H/m. What is the value of…
  21. When the relative permeability of a material is much greater than 1a it is called _______ material.
  22. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
  23. The uncharged particles which have no effect on its atomic charge.
  24. The ability of a material to conduct magnetic flux through it.
  25. If the number of valence electrons of an atom is more than 4a the substance is called
  26. What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring…
  27. The force between two magnetic poles is _____ their poles strength.
  28. Magnetic fields do not interact with
  29. The magnitude of the induced emf in a coil is directly proportional to the rate of change of flux linkages.…
  30. Which of the following is a paramagnetic material?