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Physics
The figure shows four wire loops, with edge lengths of either L or 2L. All four loops will move through a region of uniform magnetic field overset arrow B (directed out of the page) at the same constant velocity. Rank the four loops according to the maximum magnitude of the e.m.f induced as they move through the field, greatest first <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-u4lhpchyvacwiql8.jpg />

Q. The figure shows four wire loops, with edge lengths of either $L$ or $2L.$ All four loops will move through a region of uniform magnetic field $\overset{ \rightarrow }{B}$ (directed out of the page) at the same constant velocity. Rank the four loops according to the maximum magnitude of the $e.m.f$ induced as they move through the field, greatest first

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$\left(e_{c} = e_{d}\right) < \left(e_{a} = e_{b}\right)$

$\left(e_{c} = e_{d}\right)>\left(e_{a} = e_{b}\right)$

$e_{c}>e_{d}>e_{b}>e_{a}$

$e_{c} < e_{d} < e_{b} < e_{a}$

Solution:

$EMF$ induces across the length of the wire which cuts the magnetic field.
(Length of $c=$ Length of $d\left.>$ (Length of $a=b\left..$ . So $\left(e_{c} = e_{d}\right)>\left(e_{a} = e_{b}\right)$

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