A thin bar magnet of length 2 ???? and breadth 2 b pole strength
m and magnetic moment M is divided into four equal parts
with length and breadth of each part being half of original
magnet. Then the pole strength of each part is
(a) m (b) m/2 (c) 2 m (d) m/4
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Explanation:
pole strength of each parties M/4...so our option is d
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