The four wire loops shown in figure have vertical edge lengths of either L,2L, or 3L. They will move with the same speed into a region of uniform magnetic field B⇀ directed out of the page. Rank them according to the maximum magnitude of the induced emf greatest to least.
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a
1 and 2 tie,then 3 and 4 tie
b
3 and 4 tie, then 1 and 2 tie
c
4, 2, 3, 1
d
4 then 2 and 3 tie, and then 1
answer is D.
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Detailed Solution
Induced emf depends upon vertical edge.e=Blv e∝l∵B,v are constant
The four wire loops shown in figure have vertical edge lengths of either L,2L, or 3L. They will move with the same speed into a region of uniform magnetic field B⇀ directed out of the page. Rank them according to the maximum magnitude of the induced emf greatest to least.