Two identical bar magnets with a length \( 10 \mathrm{~cm} \) and weight 50 gm-weight are arrang...

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Two identical bar magnets with a length \( 10 \mathrm{~cm} \) and weight 50 gm-weight are arranged freely with their like poles facing in a inverted vertical glass tube. The upper magnet hangs in the air above the lower one so that the distance between the nearest pole of the magnets is \( 3 \mathrm{~mm} \). Pole strength of the poles of each magnet will be
(A) \( 6.64 \mathrm{Am} \)
(B) \( 2 \mathrm{Am} \)
(C) \( 10.25 \mathrm{Am} \)
(D) None of these
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