Question:
Three identical bar magnets each of magnetic moment \( M \) are placed in the form of an equilateral triangle with north pole of one touching the south pole of the other. The net magnetic moment of the system of magnets is
Three identical bar magnets each of magnetic moment \( M \) are placed in the form of an equilateral triangle with north pole of one touching the south pole of the other. The net magnetic moment of the system of magnets is
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Symmetrical vector arrangements like equilateral triangles can often lead to complete cancellation.
Updated On: Jun 3, 2025
- \( \sqrt{3}M \)
- \( \frac{3M}{2} \)
- \( 3M \)
- zero
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The Correct Option is D
Solution and Explanation
In an equilateral triangle arrangement, each bar magnet is oriented such that the magnetic moments cancel each other vectorially. The 120° symmetry ensures that the resultant magnetic moment is zero.
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