Two long parallel wires 
and 
are both perpendicular to the plane of the paper with distance 5 
between them. If 
and 
carry current of 2.5 amp and 5 amp respectively in the same direction, then the magnetic field at a point half way between the wires is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
In the following figure magnetic field at mid point 
is given by
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