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A cylindrical rod magnet has a length of 5 cm and a diameter of 1 cm. It has a uniform magnetisation of 5.30 × 103Amp/m3. What its magnetic dipole moment

(a) 1×10-2 J/T                    (b) 2.08×10-2 J/T

(c) 3.08×10-2 J/T               (d) 1.52×10-2 J/T