alleryIn the representation of a bar magnet, if one end has pole strength $+m$, the other end has pole strength
A$+m$
B$0$
C$-m$
D$2m$
Answer & Solution
Correct answer: C. $-m$
The notes show the two poles of a bar magnet as $+m$ and $-m$.
The two ends have equal magnitude of pole strength but opposite sign.
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