A non-planar loop of conducting wire carrying a current I is placed as shown in the figure. Each of the straight sections of the loop is of length 2a. The magnetic field due to this loop at the point P (a,0,a) points in the direction
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Refer to figure, the direction of magnetic field at point 
for the current due to portion 
is pointing along 
-axis i.e., represented by 
. The direction of magnetic field at the given point due to current in portion 
is pointing along 
-axis i.e., represented by 
. Magnitude of magnetic field due to both the portions will be equal. Therefore, direction of resultant magnetic field at the given point will be 
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