A wire carrying current I has the shape, as shown in the adjoining figure. Linear parts of the wire are very long and parallel to X-axis, while semicircular portion of radius R is lying in 
plane. Magnetic field at point O is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Parallel wires 1 and 3 are semi-infinite,
Magnetic field due to semi-circular arc,
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