A conducting wire is in the shape of a regular hexagon which is inscribed inside an imaginary circle of radius 
. If a current I flows the wire, the magnitude of magnetic field at the centre of the circle is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
The given situation is shown in the figure
Magnetic field at point 
because of 
is
Magnitude to total magnetic field at center
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