In the figure, a long straight wire with current i passes (without touching) thr

Question

In the figure, a long straight wire with current i passes (without touching) three rectangular wire loops with edge lengths L, 1.5L, and 2L. The loops are widely spaced (so as not to affect one another). Loops 1 and 3 are symmetric about the long wire.

Rank the loops according to the size of the current induced in them if current i is increasing, greatest first.. If multiple loops rank equally, use the same rank for each, then exclude the intermediate ranking (i.e. if objects A, B, and C must be ranked, and A and B must both be ranked first, the ranking would be A:1, B:1, C:3). If all loops rank equally, rank each as '1'.

The correct answer is that 2>1=3, but I'm confused as to how that's the case, and I'm having trouble finding a good explanation. If someone could explain this well, that would be sincerely appreciated!

Explanation / Answer

here in loop 1 and 3 there is no current because they are symmetrcial

current direction will oppsote in both half loop

so I2 > I1 = I3

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