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Who discovered the most important electrical effects which is the magnetic effect?

A. Hans Christian Oersted

B. Sir Charles Wheatstone

C. Georg Ohm

D. James Clerk Maxwell

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  1. The total number of magnetic lines of force in a magnetic field is called
  2. What is the other name for dielectric strength?
  3. The flux density in an air-cored coil is 10^-3 Wb/m^2. With a cast iron core of relative permeability…
  4. The magnetic flux of 2000 lines is how many Maxwells?
  5. Materials whose permeabilities are slightly greater than that of free space
  6. Steel is hard to magnetize because of its
  7. When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
  8. If the relative permittivity of a material is 10a then its permittivity is
  9. __________ is a substance of whose molecules consist of the same kind of atom.
  10. What is the value of the absolute permittivity of air?
  11. The customary energy unit in atomic and nuclear physics is
  12. What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred…
  13. A current if flowing east along a power line. If the earth's field is neglecteda the direction of the…
  14. The reluctance of the magnetic circuit is ________ relative permeability of the material comprising…
  15. A substance that attracts pieces iron
  16. Electrons at the outer shell are called
  17. A law stating that the magnetic susceptibilities of most paramagnetic substances are inversely proportional…
  18. The process by which an emf and hence current is generated or induced in a conductor when there is a…
  19. The ratio of the total flux (flux in iron path) to the useful flux (flux in air gap)
  20. Electronic current in a wire is the flow of ____________ electrons.
  21. All magnetic field originates from
  22. The quantity 10^6 maxwells is equivalent to one
  23. If on looking at any one end of a solenoid; the direction of current flow is found to be clockwise then…
  24. The current of electric circuit is analogous to which quantity of a m
  25. The magnetic field around the conductor is determined by the
  26. A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing…
  27. The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.
  28. What is the practical unit of electrical energy?
  29. A law relating between the magnetic and electric susceptibilities and the absolute temperatures which…
  30. Residual magnetism refers to the flux densitya which exists in the iron core when the magnetic field…