The ratio of the permeability of material to the permiabiity of air or vacuum.

A. Relative permeability

B. Relative permittivity

C. Relative conductivity

D. Relative reluctivity

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  1. The magnetic energy stored in an inductor is ______ current.
  2. Who discovered that a current-carrying conductor would move when placed in a magnetic field?
  3. The temperature coefficient of resistance of eureka is
  4. The electrons in the last orbit of an atom are called _______ electrons.
  5. If the number of valence electrons of an atom is less than 4a then the substance is probably
  6. This paper does not exhibit electricity because it contains the same number of
  7. The ability of a mechanically stressed ferromagnetic wire to recognize rapid switching of magnetization…
  8. Defined as the ratio of the volume occupied by the atoms or ions in a unit cell divided by the volume…
  9. The force between two magnetic poles is _____ the relative permeability of the medium.
  10. Which of the following is a paramagnetic material?
  11. The force between two magnetic poles is _______ their pole strengths.
  12. The emf induced in a coil due to the change of its own flux linked with it is called
  13. Which of the following materials has the least hysteresis loop area?
  14. A factor used to correct for the electrostatic forces of the more distant ions in an ionic solid.
  15. Ohm's law cannot be applied to which material?
  16. The ratio between the intensity of magnetization produced in a substance to the magnetizing force producing…
  17. Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
  18. Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
  19. Electric field intensity is measured in
  20. Which element has four valence electrons?
  21. A law stating that the magnetic susceptibilities of most paramagnetic substances are inversely proportional…
  22. The point in a magnet where the intensity of magnetic lines of force is maximum
  23. One ampere- turn is equivalent to _____ gilberts
  24. If the magnetic material is located within a coil through which alternating current (60 Hz frequency)…
  25. Flux density is measured in
  26. The temperature coefficient of resistance of insulators is
  27. Which of the following is used by temporary magnets as the magnetic material?
  28. How many neutrons does a copper atom have?
  29. An alloy of 40 percent iron and 60 percent nickel.
  30. Flux linkages equals