The relation between geometrical length (Lg) of a magnet and its magnetic length (Lm) is -
The relation between geometrical length (Lg) of a magnet and its magnetic length (Lm) is -
(A) Lm = 5/6 Lg
(B) Lm = 6/5 Lg
(C) Lm = Lg
(D) Lm = 2Lg
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