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A rigid square loop of side ‘a’ and carrying current I 2 is lying on a horizontal surface near a long current I 1 carrying wire in the same plane as shown in figure. The net force on the loop due to the wire will be – I 1 a a I 2 P Q R S

1. zero
2. Repulsive and equal to π μ 4 I I 2 1 0
3. Repulsive and equal to π μ 2 I I 2 1 0
4. Attractive and equal to π μ 3 I I 2 1 0

Correct answer: Repulsive and equal to π μ 4 I I 2 1 0

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