MagnetismHard
Question
A thin flexible wire of length L is connected to two adjacent fixed points and carries a current I in theclockwise direction, as shown in the figure. When the system is put in a uniform magnetic field of strengthB going into the plane of the paper, the wire takes the shape of a circle. The tension in the wire is
Options
A.IBL
B.
C.
D.
Solution
2Tsin
= BiRdθTdθ = BiRdθ (for θ small)
T = BiR =
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