Who discovereda the relationship between magnetism and electricity that serves as the foundation for the theory of electromagnetism?

A. Luigi Galvani

B. Hans Christian Oersted

C. Andre Ampere

D. Charles Coulomb

Related Questions

  1. The temperature coefficient of resistance of semiconductors is
  2. The temperature coefficient of resistance of conductors is
  3. The net electrical charge in an isolated system remains constant. This is known as
  4. Hysteresis is a phenomenon of _________ in a magnetic circuit.
  5. An effect which is generally used in the gausameter to measure flux density.
  6. If two similar charges 1 coulomb each are placed 1 m apart in aira then the force of repulsion is
  7. Whenever a conductor cuts magnetic fluxa an emf is induced in it. This is known as
  8. The magnetic materials should have a large hysteresis loss for one of the following applications.
  9. Electric field intensity is a ________.
  10. Which of the following magnetic materials can be easily magnetized in both direction?
  11. Who demonstrated the theory of electromagnetic induction in 1831?
  12. Hysteresis refers to the ______ between flux density of the material and the magnetizing force applied.
  13. Bonding of atoms that is due to the force of attraction between positive ions and a group of negative…
  14. One that has magnetic poles produced by internal atomic structure with no external current necessary
  15. The magnetic flux of 2000 lines is how many Maxwells?
  16. Which of the following has the least number of valence electrons?
  17. The electric flux density is a ________ quantity.
  18. A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?
  19. Germanium atom has ______ protons and ______ electrons.
  20. What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred…
  21. Formed when there exist distant electronic interactions between (opposite) charges present in the neighboring…
  22. The ability of a mechanically stressed ferromagnetic wire to recognize rapid switching of magnetization…
  23. Cobalt is an example of a ______ material.
  24. If the number of valence electrons of an atom is exactly 4a then the substance is called
  25. All matters (gasa liquid and solid) are composed of
  26. The reluctance of a magnetic circuit is not dependent on which of the following?
  27. The mass of proton is __________ the mass of an electron.
  28. A magnetic material losses its ferromagnetic properties at a point called
  29. Why is it that the magnitude of magnetomotive force required for air gap is much greater than that required…
  30. The emission of electrons from hot bodies is called

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