A long magnetic needle of length 2l magnetic moment m
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A long magnetic needle of length 2L, magnetic moment M amd pole strength m units is broken into two pieces at the middle. The magnetic moment amd pole strength of each piece will be. CBSE to introduce major changes in exam pattern of Class 10 and Class 12 board classes by 2023.
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- pole strength=m
- magnetic moment=M/2
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