Who developed the electromagnetic theory of light in 1862?

A. Heinrich Rudolf Hertz

B. Wilhelm Rontgen

C. James Clerk Maxwell

D. Andre Ampere

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  1. Hysteresis is a phenomenon of _________ in a magnetic circuit.
  2. If two similar charges 1 coulomb each are placed 1 m apart in aira then the force of repulsion is
  3. If the right handed bottle-opener cork screw is assumed to be along the conductor so as to advance in…
  4. Lenz's law is the consequence of the law of conservation of
  5. Flux density is measured in
  6. Defined as the ratio of the volume occupied by the atoms or ions in a unit cell divided by the volume…
  7. A one cubic cm of copper has how many free electrons at room temperature?
  8. Electric field intensity is measured in
  9. Magnetic fields do not interact with
  10. A substance that attracts pieces iron
  11. The temperature coefficient of resistance of eureka is
  12. The B-H curve of ________ is not a straight line.
  13. All magnetic field originates from
  14. The magnetic field inside a solenoid
  15. What is the cgs unit of magnetomotive force?
  16. What is the other name for dielectric strength?
  17. The resistivity of a conductor ___________ with an increase in temperature.
  18. Electronic current in a wire is the flow of ____________ electrons.
  19. How many electrons are needed in the valence orbit to give a material's stability?
  20. The greater percentage of materials is _________.
  21. A length of wire has a resistance of 10 ohms. What is the resistance of a wire of the same material…
  22. The magnetic flux through a wire loop in a magnetic field does not d
  23. The science of adapting electronics to aerospace flight.
  24. When the relative permeability of a material is slightly less than 1a it is called _____ material.
  25. Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
  26. The phenomenon that when an electric current passes through an anisotropic crystala there is an absorption…
  27. Formed when there exist distant electronic interactions between (opposite) charges present in the neighboring…
  28. The ratio between the intensity of magnetization produced in a substance to the magnetizing force producing…
  29. What type of bond is formed when there exists some form of collective interactions between the (negatively…
  30. Lenz' law states that the direction of the induced emf and hence current