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An alloy of 22 percent iron and 78 per cent nickel.

A. Permalloy

B. Alnico

C. Constantan

D. M anganin

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  1. A test charge means a charge of
  2. What is the diameter of an atom?
  3. An alloy of 22 percent iron and 78 per cent nickel.
  4. Which of the following statements is TRUE?
  5. There are how many compounds available in nature?
  6. Permeance is analogous to
  7. Back emf refers to the
  8. Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
  9. Which of the following is a vector quantity?
  10. Magnetic intensity is a
  11. The straight line passing through the two poles of magnet is called
  12. The ability of a mechanically stressed ferromagnetic wire to recognize rapid switching of magnetization…
  13. What is the typical saturation flux density for most magnetic materials?
  14. Electric field intensity is measured in
  15. This paper does not exhibit electricity because it contains the same number of
  16. Steel is hard to magnetize because of its
  17. The core of a transformer heats up when its primary is fed from an ac source because of
  18. A magnetic material losses its ferromagnetic properties at a point called
  19. The energy stored in an electrostatic field or electromagnetic field is called
  20. One of the solid structures in which the position of the atoms or ions are predetermined
  21. The emf induced in a coil due to the changing current of another neighboring coil is called
  22. The permeability of permalloy is
  23. If the number of valence electrons of an atom is less than 4a the substance is called
  24. The electrons in the last orbit of an atom are called _______ electrons.
  25. The diameter of a hydrogen atom is approximately ______ cm.
  26. Refers to the magnetic lines
  27. If the magnetic material is located within a coil through which alternating current (60 Hz frequency)…
  28. The magnetic potential in a magnetic circuit can be measured in terms of
  29. If the value of 0 a conductor is 1/234 per oCa then the value of 18is
  30. What is the maximum number of electrons that can be accommodated in the last orbit of an atom?