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An electron- volt (eV) is a unit of

A. Energy

B. Potential difference

C. Charge

D. Momentum

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  1. Define as that pole which when placed in air from a similar and equal pole repels it with a force of…
  2. It is the reciprocal of reluctance and implies the case of readiness with which magnetic flux is developed.
  3. An electron- volt (eV) is a unit of
  4. Refers to the magnetic lines
  5. The straight line passing through the two poles of magnet is called
  6. The electric flux density is a ________ quantity.
  7. What determines the value of the temperature coefficient of resistance of a material?
  8. A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in
  9. A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing…
  10. One that has magnetic poles produced by internal atomic structure with no external current necessary
  11. The resistance of a material is ____________ its area of cross-section.
  12. The force between two magnetic poles varies with the distance between them. The variation is ______…
  13. The magnetic potential in a magnetic circuit can be measured in terms of
  14. Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
  15. If a magnetic flux cuts across 200 turns at a rate of 2Wb/sa the induced voltage according to Faraday's…
  16. Which element has four valence electrons?
  17. The ability of a mechanically stressed ferromagnetic wire to recognize rapid switching of magnetization…
  18. Permeability means
  19. The magnetic energy stored in an inductor is ______ current.
  20. The emf induced in a coil due to the change of its own flux linked with it is called
  21. Lenz' law states that the direction of the induced emf and hence current
  22. The electric potential at a point in air due to a charge is 21 V. If the air is replaced by a medium…
  23. An alloy of 22 percent iron and 78 per cent nickel.
  24. A law relating between the magnetic and electric susceptibilities and the absolute temperatures which…
  25. What is another name for relative permittivity?
  26. What is the SI unit of reluctance?
  27. Another term for corona discharge.
  28. A good conductor has how many valence electrons?
  29. Electric field intensity at a point is numerically equal to ________ at that point.
  30. The flux density in an air-cored coil is 10^-3 Wb/m^2. With a cast iron core of relative permeability…