A good conductor has how many valence electrons?



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  1. What is the maximum number of electrons that can be accommodated in the last orbit of an atom?
  2. The air space between poles of magnets
  3. How is mutual inductance between two coils decreased?
  4. The temperature coefficient of resistance of a conductor ______ with an increase in temperature.
  5. A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing…
  6. Electric lines of force leave or enter the charge surface at an angle of
  7. Permanent magnets can be found in
  8. Define as that pole which when placed in air from a similar and equal pole repels it with a force of…
  9. The magnetic flux through a coil changes. This results to the induced emf acting in a direction as to
  10. When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
  11. Which of the following is a paramagnetic material?
  12. The direction of force o a current carrying conductor placed in a m found by
  13. The dielectric constant of most materials lies between
  14. Who discovered the most important electrical effects which is the magnetic effect?
  15. What is the SI unit of conductance?
  16. When a current carrying conductor is placed in a magnetic fielda the maximum force will act on the conductor…
  17. A substance that attracts pieces iron
  18. Germanium atom has ______ protons and ______ electrons.
  19. Which of the following is a paramagnetic material?
  20. The amount of magnetizing force to counter balance the resid magnetic material is referred to as
  21. What is the relative permittivity of air?
  22. The emf induced in a coil due to the change of its own flux linked with it is called
  23. One electron volt (1 eV) is equivalent to _____ joules
  24. The B-H curve for ________ is a straight line passing through the origin.
  25. Flux density is measured in
  26. The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…
  27. A theorem which states that an electric current flowing in a circuit produces a magnetic field at external…
  28. The force acting on a unit n- pole placed at that point is called
  29. Which of the following is a diamagnetic material?
  30. What is the SI unit of magnetic flux?