The property of a material which opposes the creation of magnetic flux in it

A. Resistance

B. Reluctance

C. Permeance

D. Conductance

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  1. A principle that states that only two electrons with different spins are allowed to exist in a given…
  2. A magnetic field is
  3. What bond is formed when electrons in the outermost energy orbits of the atoms are shared between two…
  4. An alloy of 40 percent iron and 60 percent nickel.
  5. What is the main advantage of temporary magnets?
  6. When a current carrying conductor is placed in a magnetic fielda the maximum force will act on the conductor…
  7. The resistivity of a conductor ___________ with an increase in temperature.
  8. A t/m is a unit of
  9. One weber of flux is equal to _______ magnetic lines of force.
  10. Calculate the flux density that will be produced by the field intensity of 2000 a. t/m for a permeability…
  11. Who demonstrated that there are magnetic effects around every current-carrying conductor and that current-carrying…
  12. Which of the following materials has the highest dielectric strength?
  13. Magnetic effects of the earth as a huge magnet with north and south poles.
  14. What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred…
  15. All matters (gasa liquid and solid) are composed of
  16. The current of electric circuit is analogous to which quantity of a m
  17. When the relative permeability of a material is slightly more than 1a it is called ______ material.
  18. A substance that attracts pieces iron
  19. One coulomb of charge consists of ________ electrons.
  20. A magnetizing force of 1000 AT/m will produce a flux density of __________ i
  21. A length of wire has a resistance of 10 ohms. What is the resistance of a wire of the same material…
  22. If the number of valence electrons of an atom is less than 4a then the substance is probably
  23. Core materials of a good relay have _________ hysteresis loop.
  24. The electric flux density is a ________ quantity.
  25. The branch of Engineering which deals with the magnetic effect of electric current is known as
  26. This paper does not exhibit electricity because it contains the same number of
  27. What determines the atomic number of an element?
  28. If the value of 0 a conductor is 1/234 per oCa then the value of 18is
  29. What is the reluctance of a magnetic path having a length of 2x 10^-3m and crosssectional area of 2.5…
  30. If the number of valence electrons of an atom is exactly 4a then the substance is called