A long straight wire carrying current 
is bent at 
such that half of the wire lies along the positive 
-axis and other half lies along the positive 
-axis. What is the magnitude of the magnetic field at the point, 
Text Solution
Verified by ExpertsB
A long straight wire is bent at 
as shown in the figure.
Magnitude of the magnetic field at point 
due to current carrying wire along 
-axis is zero because point 
lies in the direction of conducting wire along 
-axis.
Magnitude of the magnetic field due to current carrying wire along 
-axis at point 
is given by
Putting the given values in above relation, we get
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