One of the solid structures in which the position of the atoms or ions are predetermined

A. Crystalline solid

B. Amorphous solid

C. Polycrystalline solid

D. Poly amorphous solid

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  1. A law that states that the current in a thermionic diode varies directly with the three- halves power…
  2. The temperature coefficient of resistance of insulators is
  3. The property of a material which opposes the creation of magnetic flux in it
  4. The quantity 10^6 maxwells is equivalent to one
  5. What is the unit of magnetomotive force?
  6. Permeance of a magnetic circuit is _________ the cross-sectional area of the circuit.
  7. Who demonstrated that there are magnetic effects around every current-carrying conductor and that current-carrying…
  8. __________ is a substance of whose molecules consist of the same kind of atom.
  9. Refers to the non- metallic materials that have the ferromagnetic properties of iron.
  10. Magnetic field intensity is a ________ quantity.
  11. A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?
  12. When a conductor is stationary and the magnetic field is moving or changing the emf induced is called
  13. The process by which an emf and hence current is generated or induced in a conductor when there is a…
  14. When the relative permeability of a material is slightly more than 1a it is called ______ material.
  15. What revolves about the positive nucleus in a definite orbit?
  16. Three charges of +5 Ca -6 C and +9 C are placed inside a sphere. What is the total flux passing through…
  17. Gases whose particles are charged are known as
  18. If the value of 25 of a conductor is 1/230 per oCa then the value of 0is
  19. The uncharged particles which have no effect on its atomic charge.
  20. The relation between absolute permittivity of air ( 0)a absolute p and velocity of light (c) is given…
  21. Magnetic effects of the earth as a huge magnet with north and south poles.
  22. The mass of proton is __________ the mass of an electron.
  23. What is the unit of reluctance?
  24. If the number of valence electrons of an atom is less than 4a then the substance is probably
  25. This paper does not exhibit electricity because it contains the same number of
  26. The force between two magnetic poles varies with the distance between them. The variation is ______…
  27. Who developed the electromagnetic theory of light in 1862?
  28. The permeability of permalloy is
  29. A negative ion results when an atom gains an additional
  30. What is the SI unit of conductivity?