The magnetic field around the conductor is determined by the

A. Size of the conductor

B. Amount of current

C. Current divided by the resistance

D. Resistance divided by the current

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  1. The reluctance of a magnetic circuit varies with
  2. All matters (gasa liquid and solid) are composed of
  3. What is the usual value of leakage coefficient for electrical machines?
  4. One oersted (Oe) is equivalent to _____ Gb/cm.
  5. Small voltages generated by a conductor with current in an external magnetic field.
  6. One farad equals
  7. Which of the following has the least number of valence electrons?
  8. What is the unit of reluctance?
  9. Who demonstrated the theory of electromagnetic induction in 1831?
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    When the current flowsa the magnetic field . conductor is in what direction?
  11. Permeability means
  12. A law stating that the magnetic susceptibilities of most paramagnetic substances are inversely proportional…
  13. The straight line passing through the two poles of magnet is called
  14. The electric potential at a point in air due to a charge is 21 V. If the air is replaced by a medium…
  15. Who demonstrated that there are magnetic effects around every current-carrying conductor and that current-carrying…
  16. A negatively charge body has
  17. The emf produced in a wire by its motion across a magnetic field does not depend upon the
  18. The emission of electrons from hot bodies is called
  19. The ratio between the intensity of magnetization produced in a substance to the magnetizing force producing…
  20. The force between two magnetic poles varies with the distance between them. The variation is ______…
  21. An alloy of 40 percent iron and 60 percent nickel.
  22. If the number of valence electrons of an atom is exactly 4a then the substance is called
  23. What is the reluctance of a magnetic path having a length of 2x 10^-3m and crosssectional area of 2.5…
  24. The ability of a material to conduct magnetic flux through it.
  25. One that has magnetic poles produced by internal atomic structure with no external current necessary
  26. Hysteresis refers to the ______ between flux density of the material and the magnetizing force applied.
  27. Why is it that the magnitude of magnetomotive force required for air gap is much greater than that required…
  28. If the length and area of cross-section of a wire are doubleda then its resistance
  29. Materials whose permeabilities are slightly greater than that of free space
  30. The permittivity of a material is given by one of the following formulas.