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The unit of flux density is

A. Wb/m

B. Tesla

C. At/m

D. N/Wb

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  1. What determines the value of the temperature coefficient of resistance of a material?
  2. The B-H curve for ________ is a straight line passing through the origin.
  3. The resistivity of a conductor ___________ with an increase in temperature.
  4. Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
  5. An atom or a group of atoms that carries a net electric charge.
  6. What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred…
  7. Refers to the non- metallic materials that have the ferromagnetic properties of iron.
  8. The K shell or the first shell has how many permissible number of orbiting electrons?
  9. The emf induced in a coil due to the change of its own flux linked with it is called
  10. All matters (gasa liquid and solid) are composed of
  11. The temperature coefficient of resistance of insulators is
  12. The relation between absolute permittivity of air ( 0)a absolute p and velocity of light (c) is given…
  13. Used to maintain strength of magnetic field
  14. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
  15. A t/m is a unit of
  16. The property of magnetic materials of retaining magnetism after withdrawal of the magnetizing force…
  17. The permittivity of a material is given by one of the following formulas.
  18. The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.
  19. Hipernik is an alloy containing __________ iron and __________ nickel.
  20. The mass of proton is __________ the mass of an electron.
  21. What revolves about the positive nucleus in a definite orbit?
  22. If the solenoid is gripped by the right hand with the fingers pointing the direction of current flowa…
  23. The magnetic field around the conductor is determined by the
  24. Permeance of a magnetic circuit is _________ the cross-sectional area of the circuit.
  25. When the relative permeability of a material is slightly less than 1a it is called _____ material.
  26. Which of the following has the highest permeability?
  27. Which of the following statements is TRUE?
  28. Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
  29. Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
  30. When the relative permeability of a material is slightly more than 1a it is called ______ material.