The four wire loops shown have edge lengths of either L, 2L, or 3L. They will move with the same speed into a region of uniform magnetic field directed out of the page. Rank them according to the maximum magnitude of the induced emf, least to greatest.
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) 1, then 2 and 3 tie, then 4
E) 1, 2, 3, 4

Question

The four wire loops shown have edge lengths of either L, 2L, or 3L. They will move with the same speed into a region of uniform magnetic field  directed out of the page. Rank them according to the maximum magnitude of the induced emf, least to greatest. 
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) 1, then 2 and 3 tie, then 4 
E) 1, 2, 3, 4

Quizplus · Accepted Answer

The Answer of The four wire loops shown have edge lengths of either L, 2L, or 3L. They will move with the same speed into a region of uniform magnetic field  directed out of the page. Rank them according to the maximum magnitude of the induced emf, least to greatest. 
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) 1, then 2 and 3 tie, then 4 
E) 1, 2, 3, 4

The Four Wire Loops Shown Have Edge Lengths of Either