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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

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  1. The unit of flux is _____ in cgs system.
  2. The space outside the magnet where its pole have a force of attraction or repulsion on a magnetic pole…
  3. The reluctance of a magnetic circuit is not dependent on which of the following?
  4. Which of the following is a diamagnetic material?
  5. A 6- V battery is connected across a solenoid of 100 turns having a resistance of 2 ?a Calculate the…
  6. The property of a material which opposes the creation of magnetic flux in it
  7. Cobalt is an example of a ______ material.
  8. The unit of flux density is
  9. The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…
  10. Flux density is measured in
  11. The temperature coefficient of resistance of semiconductors is
  12. When the relative permeability of a material is slightly more than 1a it is called ______ material.
  13. What is the main advantage of temporary magnets?
  14. Magnetic effects of the earth as a huge magnet with north and south poles.
  15. The temperature coefficient of resistance of insulators is
  16. A good conductor has how many valence electrons?
  17. What is the practical unit of electrical energy?
  18. The quantity of magnetism retained by a magnetic material after withdrawal of the magnetizing force…
  19. What principle states that each electron in an atom must have a different set of quantum numbers?
  20. The force of attraction or repulsion between two magnetic poles is inversely proportional to the square…
  21. Which of the following has the highest permeability?
  22. This paper does not exhibit electricity because it contains the same number of
  23. How many turns are needed to produce a magnetomotive force of 1000 A.t for a coil with 6 amperes?
  24. What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred…
  25. The science of adapting electronics to aerospace flight.
  26. The tiniest element of matter
  27. An electron- volt (eV) is a unit of
  28. If the right handed bottle-opener cork screw is assumed to be along the conductor so as to advance in…
  29. The force between two charges placed a given distance apart ______ as the relative permittivity of the…
  30. Hipernik is an alloy containing __________ iron and __________ nickel.