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A given magnet has a polestrength p and dipole moment m . What is the dipole moment of a magnet obtained by cutting this magnet two identical pieces perpendicular to its length ? |
| Answer» Solution :When cut into two equal halves perpendicular to its LENGTH, length of each PIECE = L and pole-strength is p. `therefore m^1 =p xx l = (p xx 2L)/2` = m/2. `therefore` dipole moment is HALVED. | |