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Electron is a Greek word for

A. amber

B. Fire

C. Stone

D. Heat

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  1. The magnetic field around the conductor is determined by the
  2. When the relative permeability of a material is much greater than 1a it is called _______ material.
  3. The point in a magnet where the intensity of magnetic lines of force is maximum
  4. Electric potential is a _______ quantity.
  5. The idea of preventing one component from affecting another through their common electric and magnetic…
  6. Who developed the electromagnetic theory of light in 1862?
  7. The hot resistance of an incandescent lamp is about _______ its cold resistance.
  8. If the value of 25 of a conductor is 1/230 per oCa then the value of 0is
  9. A negatively charge body has
  10. The quantity of magnetism retained by a magnetic material after withdrawal of the magnetizing force…
  11. The induced emf in a wire loop that is moved parallel to a uniform magnetic field is
  12. What is the cgs unit of magnetomotive force?
  13. What bond is formed when electrons in the outermost energy orbits of the atoms are shared between two…
  14. ______ is an electromagnet with its core in the form of a close magnetic ring.
  15. Electromotive force in a circuit
  16. Which of the following is used by temporary magnets as the magnetic material?
  17. What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring…
  18. What is the SI unit of conductivity?
  19. What principle states that each electron in an atom must have a different set of quantum numbers?
  20. The branch of Engineering which deals with the magnetic effect of electric current is known as
  21. The relation between absolute permittivity of air ( 0)a absolute p and velocity of light (c) is given…
  22. One coulomb of charge consists of ________ electrons.
  23. Which of the following is a paramagnetic material?
  24. A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?
  25. When the relative permeability of a material is slightly less than 1a it is called _____ material.
  26. The B-H curve of ________ is not a straight line.
  27. Whenever a conductor cuts magnetic fluxa an emf is induced in it. This is known as
  28. If the distance between two magnetic poles decreases by 2 timesa the force between them
  29. At/m is a unit of
  30. Who discovered the most important electrical effects which is the magnetic effect?