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Materials that have very high permeabilities (hundreds and even thousands times of that of free space)

A. Paramagnetic

B. Non- magnetic

C. Ferromagnetic

D. Diamagnetic

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    When the current flowsa the magnetic field . conductor is in what direction?
  2. Formed when there exist distant electronic interactions between (opposite) charges present in the neighboring…
  3. Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
  4. Electron is a Greek word for
  5. When the relative permeability of a material is slightly more than 1a it is called ______ material.
  6. The customary energy unit in atomic and nuclear physics is
  7. One ampere- turn is equivalent to _____ gilberts
  8. The dielectric constant of most materials lies between
  9. Flux density is measured in
  10. An alloy of 40 percent iron and 60 percent nickel.
  11. What determines the value of the temperature coefficient of resistance of a material?
  12. The electric field intensity between the parallel plate air capacitor is 20 N/C. If an insulating slab…
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    If the resistance of a material 2 m long and 2 m^2 in area of cross-section is 1.6 10^-8 ?a then its resistivity is
  14. The magnetic flux of 2000 lines is how many Maxwells?
  15. When a wire loop is rotated in a magnetic field the direction of the induced emf changes one in every…
  16. The B-H curve for ________ is a straight line passing through the origin.
  17. If the value of 0 a conductor is 1/234 per oCa then the value of 18is
  18. Which of the following is a diamagnetic material?
  19. Who discovered that a current-carrying conductor would move when placed in a magnetic field?
  20. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
  21. The force acting on a unit n- pole placed at that point is called
  22. Paramagnetic substance has a relative permeability of
  23. Which of the following materials has the least hysteresis loop area?
  24. The ratio of the total flux (flux in iron path) to the useful flux (flux in air gap)
  25. The force which set ups or tends to set up magnetic flux in a magnetic circuit
  26. A law that states that the current in a thermionic diode varies directly with the three- halves power…
  27. Used to maintain strength of magnetic field
  28. What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring…
  29. Electric field intensity at a point is numerically equal to ________ at that point.
  30. The point in a magnet where the intensity of magnetic lines of force is maximum