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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. What is the relative permittivity of air?
  2. Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
  3. The customary energy unit in atomic and nuclear physics is
  4. Refers to the magnetic lines
  5. A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in
  6. The force between two magnetic poles is _____ their poles strength.
  7. What is the practical unit of electrical energy?
  8. A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?
  9. Permeance is analogous to
  10. What is the diameter of an atom?
  11. Permanent magnets can be found in
  12. __________ is a substance of whose molecules consist of the same kind of atom.
  13. What is the other name for dielectric strength?
  14. If the solenoid is gripped by the right hand with the fingers pointing the direction of current flowa…
  15. Who discovered the most important electrical effects which is the magnetic effect?
  16. The resistivity of a conductor ___________ with an increase in temperature.
  17. If you hold the conductor with right hand so that the stretched thumb points in the direction of the…
  18. Which of the following has the least number of valence electrons?
  19. One electron volt (1 eV) is equivalent to _____ joules
  20. The simplest type of atom to exist is the ______ atom.
  21. Who demonstrated the theory of electromagnetic induction in 1831?
  22. The process by which an emf and hence current is generated or induced in a conductor when there is a…
  23. Permeance of a magnetic circuit is _________ the cross-sectional area of the circuit.
  24. The permeability of permalloy is
  25. What determines the value of the temperature coefficient of resistance of a material?
  26. A permanent magnet does not exert a force on
  27. The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…
  28. How much is the flux in Weber in the above problem?
  29. The magnetic flux through a wire loop in a magnetic field does not d
  30. The unit of flux density is