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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 direction of force o a current carrying conductor placed in a m found by
  2. The diameter of a hydrogen atom is approximately ______ cm.
  3. The magnetic flux through a wire loop in a magnetic field does not d
  4. If the number of valence electrons of an atom is less than 4a then the substance is probably
  5. Electron is a Greek word for
  6. What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred…
  7. The electric potential at a point in air due to a charge is 21 V. If the air is replaced by a medium…
  8. The current of electric circuit is analogous to which quantity of a m
  9. Hysteresis is a phenomenon of _________ in a magnetic circuit.
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    When the current flowsa the magnetic field . conductor is in what direction?
  11. The B-H curve for ________ is a straight line passing through the origin.
  12. The point in a magnet where the intensity of magnetic lines of force is maximum
  13. When the relative permeability of a material is slightly more than 1a it is called ______ material.
  14. A one cubic cm of copper has how many free electrons at room temperature?
  15. A negative ion results when an atom gains an additional
  16. The force which set ups or tends to set up magnetic flux in a magnetic circuit
  17. The quantity 10^6 maxwells is equivalent to one
  18. The force between two magnetic poles is _____ the relative permeability of the medium.
  19. The property of a material which opposes the creation of magnetic flux in it
  20. What is the SI unit of conductivity?
  21. The unit of flux is _____ in cgs system.
  22. One ampere- turn is equivalent to _____ gilberts
  23. What is another name for relative permittivity?
  24. Materials that have very high permeabilities (hundreds and even thousands times of that of free space)
  25. Permeance of a magnetic circuit is _________ the cross-sectional area of the circuit.
  26. When the relative permeability of a material is much greater than 1a it is called _______ material.
  27. Magnetic effects of the earth as a huge magnet with north and south poles.
  28. Cobalt is an example of a ______ material.
  29. Which of the following is a diamagnetic material?
  30. Who demonstrated that there are magnetic effects around every current-carrying conductor and that current-carrying…