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The ratio of the total flux (flux in iron path) to the useful flux (flux in air gap)

A. Leakage flux

B. Leakage current

C. Leakage coefficient

D. Leakage factor

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  1. The B-H curve of ________ is not a straight line.
  2. Which of the following has the least number of valence electrons?
  3. The emission of electrons from hot bodies is called
  4. One coulomb of charge consists of ________ electrons.
  5. What is the diameter of an atom?
  6. The force between two magnetic poles is _______ their pole strengths.
  7. The temperature coefficient of resistance of semiconductors is
  8. Formed when there exist distant electronic interactions between (opposite) charges present in the neighboring…
  9. When the relative permeability of a material is slightly more than 1a it is called ______ material.
  10. What is the usual value of leakage coefficient for electrical machines?
  11. When a wire loop is rotated in a magnetic field the direction of the induced emf changes one in every…
  12. A t/m is a unit of
  13. A current if flowing east along a power line. If the earth's field is neglecteda the direction of the…
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    A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 10^-6
  15. Lenz' law states that the direction of the induced emf and hence current
  16. Why is it that the magnitude of magnetomotive force required for air gap is much greater than that required…
  17. Bonding of atoms that is due to the force of attraction between positive ions and a group of negative…
  18. The dielectric constant of most materials lies between
  19. The K shell or the first shell has how many permissible number of orbiting electrons?
  20. What is the maximum number of electrons that can be accommodated in the last orbit of an atom?
  21. Who demonstrated the theory of electromagnetic induction in 1831?
  22. What is the unit of reluctance?
  23. When the relative permeability of a material is slightly less than 1a it is called _____ material.
  24. What type of bond is formed when there exists some form of collective interactions between the (negatively…
  25. Paramagnetic substance has a relative permeability of
  26. __________ is a substance of whose molecules consist of the same kind of atom.
  27. A negative ion results when an atom gains an additional
  28. The emf induced in a coil due to the changing current of another neighboring coil is called
  29. Under ordinary conditionsa a body is considered
  30. All matters (gasa liquid and solid) are composed of