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Defined as the ratio of the volume occupied by the atoms or ions in a unit cell divided by the volume of the unit cell and is used to measure the compactness of a crystal.

A. Atomic packing factor (APF)

B. Ionic Packing Ratio (IPR)

C. Atomic compacting factor (ACF)

D. Ionic compacting ratio (ICR)

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    When the current flowsa the magnetic field . conductor is in what direction?
  2. Hysteresis is a phenomenon of _________ in a magnetic circuit.
  3. The induced emf in a wire loop that is moved parallel to a uniform magnetic field is
  4. When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
  5. The reluctance of the magnetic circuit is ________ relative permeability of the material comprising…
  6. What is the SI unit of conductivity?
  7. What is used as the insulating material or dielectric in an electric ion
  8. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
  9. The magnetic flux through a coil changes. This results to the induced emf acting in a direction as to
  10. Ohm's law can be used only to a _____ circuit or component.
  11. Three charges of +5 Ca -6 C and +9 C are placed inside a sphere. What is the total flux passing through…
  12. Which of the following materials has the least hysteresis loop area?
  13. The air space between poles of magnets
  14. A magnetic field is
  15. What is the SI unit of reluctance?
  16. Magnetic effects of the earth as a huge magnet with north and south poles.
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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
  18. In electro-mechanical conversion devices like generators and motors the reason why a small air gap is…
  19. The flux density in an air-cored coil is 10^-3 Wb/m^2. With a cast iron core of relative permeability…
  20. The magnetic field of a magnetized iron bar when strongly heated
  21. The unit of electrical energy is
  22. The conduction of electricity across the surface of a dielectric is called
  23. The lagging effect between flux density of the material and the magne
  24. The force between two magnetic poles is _____ their poles strength.
  25. What is the SI unit of conductance?
  26. The phenomenon by which a subtracts pieces of iron
  27. A magnetic material losses its ferromagnetic properties at a point called
  28. What is the unit of magnetomotive force?
  29. Which of the following is used by temporary magnets as the magnetic material?
  30. The force acting on a pole of 5 Wb is 25 N. What is the intensity of the magnetic field?