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Difficulty: EasyMagnetism Fundamentals

Magnetic lines of flux form continuous closed loops that define the magnetic field of a permanent bar magnet. In which direction do these lines of force travel outside of the magnet?

  1. A
    From the south pole to the north pole
  2. From the north pole to the south poleAnswer
  3. C
    From the positive terminal to the negative terminal
  4. D
    From the center of the magnet outward in all directions

Answer

From the north pole to the south pole
External to a permanent magnet, magnetic field lines (lines of flux) always leave the north pole and curve through space to enter the south pole.

Step-by-Step Solution

1
Identify the fundamental physical convention for magnetic field lines around a magnet.
Magnetic flux lines exit the north pole and curve through the surrounding space to enter the south pole.
Outside a magnet, lines of force always travel from the north magnetic pole toward the south magnetic pole to complete an external path.

Key Concept

Direction of external magnetic flux lines
Estimated Time:30s
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Topics

Magnetism Fundamentals

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