How does the (i) pole strength, and (ii) magnetic moment of each part of a bar magnet change if it is cut into two equal pieces transverse to its length? [HOTS]
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where M=Magnetic moment. According to this relation, when a bar magnet is cut into two halves along its length, area of cross-section become half. But length remains the same. So, the pole strength actually becomes half and consequently the magnetic moment becomes half
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