The straight line passing through the two poles of magnet is called

A. Real axis

B. Cartesian axis

C. Magnetic axis

D. Imaginary axis

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  1. The permittivity of a material is given by one of the following formulas.
  2. What determines the value of the temperature coefficient of resistance of a material?
  3. An effect which is generally used in the gausameter to measure flux density.
  4. Flux density is measured in
  5. Electric potential is a _______ quantity.
  6. What is the diameter of an atom?
  7. Which of the following materials has permeability slightly less than that of free space?
  8. The force between two magnetic poles is _____ the relative permeability of the medium.
  9. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
  10. What is the relative permittivity of air?
  11. What principle states that each electron in an atom must have a different set of quantum numbers?
  12. A magnetizing force of 1000 AT/m will produce a flux density of __________ i
  13. An atom or a group of atoms that carries a net electric charge.
  14. The greater percentage of materials is _________.
  15. Defined as a closed path in which magnetic induction or flux flows
  16. Back emf refers to the
  17. The B-H curve of ________ is not a straight line.
  18. The magnetic field around the conductor is determined by the
  19. Which element has four valence electrons?
  20. The ability of a material to conduct magnetic flux through it.
  21. The magnetic field of a bar magnet most closely resembles the magnetic field of
  22. Hipernik is an alloy containing __________ iron and __________ nickel.
  23. What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring…
  24. The air space between poles of magnets
  25. Which of the following materials has the least hysteresis loop area?
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  27. If the number of valence electrons of an atom is less than 4a the substance is called
  28. The ratio of the permeability of material to the permiabiity of air or vacuum.
  29. Gases whose particles are charged are known as
  30. Which of the following magnetic materials can be easily magnetized in both direction?