What is the reluctance of a magnetic path having a length of 2x 10^-3m and crosssectional area of 2.5 x 10^-3 m^2?

A. 6366 A, t/Wb

B. 6000 A, t/Wb

C. 8x10^-3 A, t/Wb

D. 0.8 A, t/Wb

You can do it
  1. Three charges of +5 Ca -6 C and +9 C are placed inside a sphere. What is the total flux passing through…
  2. Who demonstrated that there are magnetic effects around every current-carrying conductor and that current-carrying…
  3. When the relative permeability of a material is much greater than 1a it is called _______ material.
  4. The air space between poles of magnets
  5. One of the common application of an air- cored choke.
  6. The B-H curve of ________ is not a straight line.
  7. Residual magnetism refers to the flux densitya which exists in the iron core when the magnetic field…
  8. The physical motion resulting from the forces of magnetic fields is called
  9. The permeability of permalloy is
  10. If the distance between two magnetic poles decreases by 2 timesa the force between them
  11. The force between two magnetic poles is _____ the relative permeability of the medium.
  12. The force between two magnetic poles is _______ their pole strengths.
  13. The ratio between the intensity of magnetization produced in a substance to the magnetizing force producing…
  14. What is the unit of reluctance?
  15. Which of the following statements is TRUE?
  16. Defined as the ratio of the volume occupied by the atoms or ions in a unit cell divided by the volume…
  17. The force which set ups or tends to set up magnetic flux in a magnetic circuit
  18. The evaporation of electrons from a heated surface is called
  19. Temporary magnets are commonly employed in
  20. The magnetic energy stored in an inductor is ______ current.
  21. The conduction of electricity across the surface of a dielectric is called
  22. Under ordinary conditionsa a body is considered
  23. The force acting on a pole of 5 Wb is 25 N. What is the intensity of the magnetic field?
  24. The B-H curve for ________ is a straight line passing through the origin.
  25. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
  26. All matters (gasa liquid and solid) are composed of
  27. What is the value of the absolute permittivity of air?
  28. The phenomenon by which a magnetic substance becomes a magnet when it is place near a magnet
  29. Two similar polesa each 1Wba placed 1 m apart in air will experience a repulsive force of
  30. The simplest type of atom to exist is the ______ atom.