Magnetic field due to currentMedium
Question
In the loops shown, all curved sections are either semicircles or quarter circles. All the loops carry the same current. The magnetic fields at the centers have magnitudes B1, B2, B3 and B4
Options
A.B4 is maximum.
B.B3 is minimum.
C.B4 > B1 > B2 > B3
D.B1 > B4 > B3 > B2
Solution
In B1 and B4 M. F add up.
In B2 and B3, M.F. oppose each other.
In B2 and B3, M.F. oppose each other.
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