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Materials whose permeabilities are slightly greater than that of free space

A. Paramagnetic

B. Non- magnetic

C. Ferromagnetic

D. Diamagnetic

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  1. One ampere- turn is equivalent to _____ gilberts
  2. Which of the following is a vector quantity?
  3. Small voltages generated by a conductor with current in an external magnetic field.
  4. Electronic current in a wire is the flow of ____________ electrons.
  5. If the number of valence electrons of an atom is exactly 4a then the substance is called
  6. The quantity 10^6 maxwells is equivalent to one
  7. The magnetic field of a magnetized iron bar when strongly heated
  8. Defined as a closed path in which magnetic induction or flux flows
  9. A test charge means a charge of
  10. When a wire loop is rotated in a magnetic field the direction of the induced emf changes one in every…
  11. Used to maintain strength of magnetic field
  12. When a current carrying conductor is placed in a magnetic fielda the maximum force will act on the conductor…
  13. Hipernik is an alloy containing __________ iron and __________ nickel.
  14. What revolves about the positive nucleus in a definite orbit?
  15. How is mutual inductance between two coils decreased?
  16. Which of the following magnetic materials can be easily magnetized in both direction?
  17. Permanent magnets can be found in
  18. Which of the following statements is TRUE?
  19. An alloy of 40 percent iron and 60 percent nickel.
  20. Electric field intensity at a point due to a given charge ______ if the relative permittivity of the…
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    A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 10^-6
  22. The amount of magnetizing force to counter balance the resid magnetic material is referred to as
  23. The force between two magnetic poles varies with the distance between them. The variation is ______…
  24. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
  25. The mass of proton is __________ the mass of an electron.
  26. The magnetic materials should have a large hysteresis loss for one of the following applications.
  27. Who discovered superconductivity in 1911?
  28. Defined as the flux density produced in it due to its own induced magnetism
  29. If the number of valence electrons of an atom is less than 4a then the substance is probably
  30. What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring…