Question

Magnetic field lines represent the path along which _______?

• A. a free proton would tend to move
• B. a free electron would tend to move
• C. a hypothetical free south pole would tend to move
• D. a hypothetical free north pole would tend to move

Answer 1

Answer:

D. a hypothetical free north pole would tend to move

Magnetic field lines represent the path along which a hypothetical free north magnetic pole would move within a magnetic field. A hypothetical free north pole would move along the magnetic field line from the north pole to the south pole of a magnet. The density of the magnetic field lines indicates the strength of the magnetic field; closer lines signify a stronger field