Two wires of the same length are shaped into a square of side 'a' and a circle with radius 'r'. If they carry same current, the ratio of their magnetic moment is (i) 2 : ? (ii) ? : 2 (iii) ? : 4 (iv) 4 :
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Step 1: Calculate the area of the square with side length 'a': Area of square = a^2 Show more…
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Two wires of the same length are shaped into a square of side 'a' and a circle with radius 'r'. If they carry same current, the ratio of their magnetic moment is (i) 2 : π (ii) π : 2 (iii) π : 4 (iv) 4 : π
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