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A commercial alloy of aluminum nickela and iron with cobalta copper and titanium added to produce about 12 grades.

A. Alnico

B. Brass

C. Aluminum

D. Constantan

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  1. Flux linkages equals
  2. The relation between absolute permittivity of air ( 0)a absolute p and velocity of light (c) is given…
  3. A magnetic material losses its ferromagnetic properties at a point called
  4. The phenomenon by which a magnetic substance becomes a magnet when it is place near a magnet
  5. What is used as the dielectric material in high voltage transformers?
  6. What is the typical saturation flux density for most magnetic materials?
  7. The hot resistance of an incandescent lamp is about _______ its cold resistance.
  8. The force acting on a unit n- pole placed at that point is called
  9. What is the reluctance of a magnetic path having a length of 2x 10^-3m and crosssectional area of 2.5…
  10. The ratio of the permeability of material to the permiabiity of air or vacuum.
  11. Another term for corona discharge.
  12. The force between two magnetic poles is _____ their poles strength.
  13. The force between two magnetic poles varies with the distance between them. The variation is ______…
  14. The temperature coefficient of resistance of eureka is
  15. This paper does not exhibit electricity because it contains the same number of
  16. Who discovered the most important electrical effects which is the magnetic effect?
  17. What is used as the insulating material or dielectric in an electric ion
  18. The point in a magnet where the intensity of magnetic lines of force is maximum
  19. An electron- volt (eV) is a unit of
  20. The straight line passing through the two poles of magnet is called
  21. __________ is a substance of whose molecules consist of the same kind of atom.
  22. What is the SI unit of conductance?
  23. Electric field intensity at a point due to a given charge ______ if the relative permittivity of the…
  24. If the solenoid is gripped by the right hand with the fingers pointing the direction of current flowa…
  25. A law establishing the fact that the algebraic su of the rises and drops of the mmf around a closed…
  26. If the number of valence electrons of an atom is more than 4a the substance is called
  27. A positively charged body has
  28. Which of the following is a vector quantity?
  29. Hipernik is an alloy containing __________ iron and __________ nickel.
  30. A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?