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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. Defined as a closed path in which magnetic induction or flux flows
  2. Hysteresis loss can be reduced by one of the following.
  3. What principle states that each electron in an atom must have a different set of quantum numbers?
  4. A substance that attracts pieces iron
  5. __________ is a substance of whose molecules consist of the same kind of atom.
  6. What is the main advantage of temporary magnets?
  7. What is the typical saturation flux density for most magnetic materials?
  8. What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring…
  9. Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
  10. The relative permeability of a magnetic material is 10^5. What is its permeability?
  11. If the solenoid is gripped by the right hand with the fingers pointing the direction of current flowa…
  12. If on looking at any one end of a solenoid; the direction of current flow is found to be clockwise then…
  13. Three charges of +5 Ca -6 C and +9 C are placed inside a sphere. What is the total flux passing through…
  14. One coulomb of charge consists of ________ electrons.
  15. The process by which an emf and hence current is generated or induced in a conductor when there is a…
  16. A group of magnetically aligned atoms is called
  17. Which of the following has the highest permeability?
  18. Residual magnetism refers to the flux densitya which exists in the iron core when the magnetic field…
  19. Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
  20. What is used as the insulating material or dielectric in an electric ion
  21. The quantity of magnetism retained by a magnetic material after withdrawal of the magnetizing force…
  22. What determines the value of the temperature coefficient of resistance of a material?
  23. The straight line passing through the two poles of magnet is called
  24. Defined as the number of lines per unit area through any substance in a plane at right angles to the…
  25. When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
  26. If a magnetic flux cuts across 200 turns at a rate of 2Wb/sa the induced voltage according to Faraday's…
  27. The property of a material which opposes the creation of magnetic flux in it
  28. The electric potential across part AB of a circuit is 5 V; point A being at higher potential. If a charge…
  29. Gases whose particles are charged are known as
  30. The temperature coefficient of resistance of a conductor ______ with an increase in temperature.