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What type of bond is formed when there exists some form of collective interactions between the (negatively charged) electrons and (positively charged) nuclei in a solid?

A. Ionic

B. Covalent

C. Metallic

D. Van der Waals

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  1. One oersted (Oe) is equivalent to _____ Gb/cm.
  2. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
  3. Which of the following is a paramagnetic material?
  4. A one cubic cm of copper has how many free electrons at room temperature?
  5. One weber of flux is equal to _______ magnetic lines of force.
  6. The lagging effect between flux density of the material and the magne
  7. The permittivity of a material is given by one of the following formulas.
  8. A length of wire has a resistance of 10 ohms. What is the resistance of a wire of the same material…
  9. An alloy of 22 percent iron and 78 per cent nickel.
  10. A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 × 10^-6
  11. When the relative permeability of a material is slightly less than 1a it is called _____ material.
  12. One coulomb of charge consists of ________ electrons.
  13. A law that states that the current in a thermionic diode varies directly with the three- halves power…
  14. One that has magnetic poles produced by internal atomic structure with no external current necessary
  15. The ratio between the intensity of magnetization produced in a substance to the magnetizing force producing…
  16. The ability of a mechanically stressed ferromagnetic wire to recognize rapid switching of magnetization…
  17. The direction of force o a current carrying conductor placed in a m found by
  18. A law relating between the magnetic and electric susceptibilities and the absolute temperatures which…
  19. If the number of valence electrons of an atom is less than 4a then the substance is probably
  20. Which of the following electric quantities is vector in character?
  21. The space outside the magnet where its pole have a force of attraction or repulsion on a magnetic pole…
  22. Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
  23. Electric potential is a _______ quantity.
  24. The current of electric circuit is analogous to which quantity of a m
  25. Magnetic field intensity is a ________ quantity.
  26. The force between two magnetic poles is _____ their poles strength.
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    When the current flowsa the magnetic field . conductor is in what direction?
  28. If the resistance of a material 2 m long and 2 m^2 in area of cross-section is 1.6 ×10^-8 ?a then…
  29. The core of a magnetic equipment uses a magnetic material with
  30. The property of a material which opposes the creation of magnetic flux in it