Magnetic Field & Circuits Quiz
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Questions and Answers

What causes certain materials to become magnetic?

  • The cancelation of magnetic forces within the material
  • The presence of electric current within the material
  • The random spin of electrons within the material
  • The arrangement of molecules in the material (correct)

    • What is the strongest magnetic field strength of a permanent magnet?

  • 8,000 gauss (correct)
  • 10,000 gauss
  • 50,000 gauss
  • 450,000 gauss

    • What is the unit of measurement for magnetic induction, also known as magnetic flux density?

  • Gauss (correct)
  • Joule
  • Tesla
  • Erg

    • What gives a solenoid north and south magnetic poles and a magnetic field?

    <p>Electric current flowing through it</p> Signup and view all the answers

    What creates a magnetic force that flows from the north pole to the south pole in magnets?

    <p>Spinning of the electrons around the nucleus of an atom</p> Signup and view all the answers

    What is responsible for the most notable property of a magnet?

    <p>Magnetic field</p> Signup and view all the answers

    Why do permanent magnets produce a magnetic field?

    <p>Due to the internal structure of the material</p> Signup and view all the answers

    Which materials are attracted or repelled by the magnetic field of a magnet?

    <p>Ferromagnetic materials</p> Signup and view all the answers

    What is responsible for the generation of magnetic fields in permanent magnets?

    <p>Internal structure of the material</p> Signup and view all the answers

    Why is there no permanent magnetism in many materials?

    <p>Due to cancellation of random magnetic fields</p> Signup and view all the answers

    What is the unit of measurement for magnetic induction, also known as magnetic flux density?

    <p>Tesla</p> Signup and view all the answers

    What causes certain materials to become magnetic?

    <p>Arrangement of molecules so that electrons spin in the same direction</p> Signup and view all the answers

    What gives a solenoid north and south magnetic poles and a magnetic field?

    <p>Electric current flowing through the coil</p> Signup and view all the answers

    What is responsible for the most notable property of a magnet?

    <p>Spinning of electrons around the nucleus</p> Signup and view all the answers

    Why is there no permanent magnetism in many materials?

    <p>Random directions of electron spins cancel out magnetic forces</p> Signup and view all the answers

    What is responsible for the most notable property of a magnet?

    <p>Internal structure of the material</p> Signup and view all the answers

    Why do permanent magnets produce a magnetic field?

    <p>Result of nuclear spins and electron spins</p> Signup and view all the answers

    What causes certain materials to become magnetic?

    <p>Nuclear spins</p> Signup and view all the answers

    What gives a solenoid north and south magnetic poles and a magnetic field?

    <p>Flow of electric current</p> Signup and view all the answers

    What creates a magnetic force that flows from the north pole to the south pole in magnets?

    <p>Cancellation of magnetic fields</p> Signup and view all the answers

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