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42 Matching questions

  1. temporary magnets
  2. conventional current
  3. contact
  4. north (north-seeking) pole
  5. permeability
  6. saturation
  7. stronger
  8. solenoid
  9. lines of flux
  10. south (south-seeking) pole
  11. magnetic insulators
  12. coulomb
  13. left-hand rule
  14. induction
  15. ampere
  16. magnetic flux
  17. law of magnetic poles
  18. closed loops
  19. Hans Oersted
  20. right-hand rule
  21. True
  22. magnetic moment
  23. paramagnetic
  24. domain
  25. monopoles
  26. alnico
  27. permalloy
  28. ferromagnetic
  29. 1.26 x 10^-6 N/A^2
  30. electromagnet
  31. spin magnet
  32. tangent
  33. orbital magnets
  34. magnetite
  35. lodestone
  36. magnetic induction
  37. diamagnetic
  38. contact and induction
  39. keeper
  40. right-handed three finger rule
  41. flux density
  42. dipolar
  1. a term for the end of a lodestone that gains a southward direction
  2. b Danish physicist who found that an electric current affects the magnetic meedle of a compass
  3. c term for isolated north poles and south poles that might occur somewhere in nature
  4. d another term for magnetic induction
  5. e the law that states that unlike poles attract whereas like poles repel
  6. f term for the amount of charge that, in each second, passes a given point on the conductor
  7. g term for the total number of lines falling on any surface, or the total magnetic influence playing oupon a surface
  8. h term for a small region containing billions or trillions of atoms with aligned magnetic poles
  9. i True or False: Electrons flow from negative to postive.
  10. j term for lines on diagrams or drawings that show which ways the north and south poles point
  11. k the value of the permeability constant for a vacuum
  12. l The direction of field strength acting on an isolated north pole is _____ to a line of flux at every point.
  13. m term for the spin axes of all the unpaired electrons pointing in the same direction
  14. n Magnetizing an object by bringing it into the presence of an existing magnet is called magnetization by _____.
  15. o term for highly permeable materials that resist penetration by lines of flux
  16. p term for a magnetic form of iron ore
  17. q the best material to make a magnet rapidly gain and rapidly lose magnetization; an alloy of nickel and iron in approzimately a 3 to 1 ratio
  18. r Magnetizing an object by stroking or touching it with an existing magnet is called magnetization by ____.
  19. s term that describes electricity through a circuit as positive charges flowing from positive to negative
  20. t term for the end of a lodestone that gains a north-ward direction
  21. u term for a piece of soft iron that can be placed across the poles at the end of each pair of magnets when they are put away
  22. v term for iron magnets and other easily demagnetized magnets
  23. w term for a material that has only one unpaired elctron per atom, and is weakly attracted to a magnet
  24. x Lines of flux must be drawn as ___ ___.
  25. y term for magnetic moment produced by electrons
  26. z the rule that states that if you point your right thumb in the direction of positive current, your extended index finger points in the direction of magnetic induction
  27. aa A magnetic pole is always paired with its opposite; thus, every magnet is ____.
  28. ab the rule that says that negative current flows the oposite direction of positive current
  29. ac term for a material that is repelled by a magnet
  30. ad term for the field strength at a particular point in a magnetic field
  31. ae The lines of flux are more concentrated where the magnetic field is ____.
  32. af term for a material that is strongly attracted to a magnet because it has two or more unpaired electrons per atom
  33. ag the rule that states that if the thumb of the right hand is pointed along a conductor in the direction of positive current, the fingers encircle the conductor in the direction of the north-moving field
  34. ah two ways to magnetize an object
  35. ai term for an electron that rotates on its own axis
  36. aj term used for any piece of magnetized rock since it had value in giving direction
  37. ak term for an alloy of aluminum, nickel, cobalt, and iron in various proportions, of which many permanent magnets are made
  38. al term for the current that, when flowing in each of two long, parallel conductors spaced one meter apart in a vacuum, would give rise to a force of exactly 2 x 10^7 N upon any meter length of either conductor
  39. am term for a long series of adjacent loops in the form of a helix or a loose coil; becomes a magnet when current passes through the wire
  40. an term for a solenoid with a core of iron, permalloy, or similar material
  41. ao term for when an electron seems to spin but does not actually spin
  42. ap The extent to which a material absorbs lines of flux is related to its _____, or how strongly it is magnetized by a magnetic field.