Two magnets of equal mass are joined at 90 ° each other as shown in figure. Magnet N 1 S 1 has a magnetic moment 3 times that of N 2 S 2 . The arrangement is pivoted so that it is free to rotate in horizontal plane. When in equilibrium, what angle should N 1 S 1 make with magnetic meridian?

Question

Two magnets of equal mass are joined at 90 ° each other as shown in figure. Magnet N 1 S 1 has a magnetic moment 3 times that of N 2 S 2 . The arrangement is pivoted so that it is free to rotate in horizontal plane. When in equilibrium, what angle should N 1 S 1 make with magnetic meridian?, 75 °, 60 °, 30 °, 45 °

MARKS App · Accepted Answer

In equilibrium, the resultant magnetic moment will be along magnetic meridian. Let N 1 S 1 make ∠ θ with resultant t a n θ = M 2 M 1 = M 3 M = 1 3 ∴ θ = 30 °

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