A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in

A. 5 Wb

B. 0.5 Tesia of flux density

C. 5x 10^-5 Wb of flux

D. 5000 Tesia of flux density

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  1. Electron is a Greek word for
  2. A magnetic field is
  3. Refers to the magnetic lines
  4. Magnetic effects of the earth as a huge magnet with north and south poles.
  5. The greater percentage of materials is _________.
  6. The magnetic flux through a wire loop in a magnetic field does not d
  7. The conduction of electricity across the surface of a dielectric is called
  8. The force between two magnetic poles is _____ their poles strength.
  9. The phenomenon by which a subtracts pieces of iron
  10. Refers to the non- metallic materials that have the ferromagnetic properties of iron.
  11. The uncharged particles which have no effect on its atomic charge.
  12. One farad equals
  13. The force acting on a unit n- pole placed at that point is called
  14. What is the SI unit of conductance?
  15. The phenomenon by which a magnetic substance becomes a magnet when it is place near a magnet
  16. What bond is formed when electrons in the outermost energy orbits of the atoms are shared between two…
  17. The physical motion resulting from the forces of magnetic fields is called
  18. If the number of valence electrons of an atom is less than 4a the substance is called
  19. An effect which is generally used in the gausameter to measure flux density.
  20. Which of the following electric quantities is vector in character?
  21. What is the SI unit of reluctance?
  22. If on looking at any one end of a solenoid; the direction of current flow is found to be clockwise then…
  23. If the relative permittivity of a material is 10a then its permittivity is
  24. The reluctance of a magnetic circuit is not dependent on which of the following?
  25. Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
  26. One oersted (Oe) is equivalent to _____ Gb/cm.
  27. The emission of electrons from hot bodies is called
  28. The electric flux density is a ________ quantity.
  29. If the resistance of a material 2 m long and 2 m^2 in area of cross-section is 1.6 ×10^-8 ?a then…
  30. The B-H curve of ________ is not a straight line.