What do we mean when we say that a magnetic field has polarity?
A) A magnetic field has a north and south "poles" or directions.
B) A magnetic field is able to flip its poles over a long period of time.
C) A planetary magnetic field is aligned with the geographic poles of the planet.
D) A planetary magnetic field is strongest at the poles of the planet.
E) None of these choices are correct.
Correct Answer:
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