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Which of the following has the least number of valence electrons?

A. Conductor

B. Semiconductor

C. Insulator

D. Semi- insulator

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  1. An atom or a group of atoms that carries a net electric charge.
  2. It is the reciprocal of reluctance and implies the case of readiness with which magnetic flux is developed.
  3. Electrons at the outer shell are called
  4. The magnetic flux through a wire loop in a magnetic field does not d
  5. Electronic current in a wire is the flow of ____________ electrons.
  6. Which of the following is a vector quantity?
  7. The reluctance of the magnetic circuit is ________ relative permeability of the material comprising…
  8. When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
  9. The reluctance of a magnetic circuit varies with
  10. When a conductor is stationary and the magnetic field is moving or changing the emf induced is called
  11. A commercial alloy of aluminum nickela and iron with cobalta copper and titanium added to produce about…
  12. Permanent magnets can be found in
  13. The customary energy unit in atomic and nuclear physics is
  14. When the relative permeability of a material is slightly more than 1a it is called ______ material.
  15. If the number of valence electrons of an atom is less than 4a then the substance is probably
  16. A test charge means a charge of
  17. Which of the following is a natural magnet?
  18. The point in a magnet where the intensity of magnetic lines of force is maximum
  19. The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…
  20. A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in
  21. The temperature coefficient of resistance of eureka is
  22. A good conductor has how many valence electrons?
  23. The induced emf in a wire loop that is moved parallel to a uniform magnetic field is
  24. Calculate the flux density that will be produced by the field intensity of 2000 a. t/m for a permeability…
  25. The emission of electrons from hot bodies is called
  26. The emf induced in a coil due to the changing current of another neighboring coil is called
  27. What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring…
  28. The hot resistance of an incandescent lamp is about _______ its cold resistance.
  29. The magnetic field of a magnetized iron bar when strongly heated
  30. If the number of valence electrons of an atom is more than 4a the substance is called