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. Why is it that the magnitude of magnetomotive force required for air gap is much greater than that required…
  2. An alloy of 40 percent iron and 60 percent nickel.
  3. What is the value of the absolute permittivity of air?
  4. One of the common application of an air- cored choke.
  5. The uncharged particles which have no effect on its atomic charge.
  6. The hot resistance of an incandescent lamp is about _______ its cold resistance.
  7. Another term for corona discharge.
  8. What determines the value of the temperature coefficient of resistance of a material?
  9. The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.
  10. What is the diameter of an atom?
  11. The lagging effect between flux density of the material and the magne
  12. Flux linkages equals
  13. When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
  14. The net electrical charge in an isolated system remains constant. This is known as
  15. The electric potential across part AB of a circuit is 5 V; point A being at higher potential. If a charge…
  16. If the distance between two magnetic poles decreases by 2 timesa the force between them
  17. One ampere- turn is equivalent to _____ gilberts
  18. One farad equals
  19. The reluctance of a magnetic circuit is not dependent on which of the following?
  20. The property of magnetic materials of retaining magnetism after withdrawal of the magnetizing force…
  21. Lenz's law is the consequence of the law of conservation of
  22. The straight line passing through the two poles of magnet is called
  23. What bond is formed when electrons in the outermost energy orbits of the atoms are shared between two…
  24. Who discovered the most important electrical effects which is the magnetic effect?
  25. The force which set ups or tends to set up magnetic flux in a magnetic circuit
  26. A factor used to correct for the electrostatic forces of the more distant ions in an ionic solid.
  27. Who developed the electromagnetic theory of light in 1862?
  28. Electromotive force in a circuit
  29. The resistivity of a conductor ___________ with an increase in temperature.
  30. What is another name for relative permittivity?