Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A long straight wire along the 
-axis carries a current 
in the negative 
-direction. The magnetic field vector 
at a point having coordinates 
in the 
plane is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
In the 
plane, the situation is as follows
Here, 
is the point and 
Magnetic field at 
is perpendicular to 
, as it is shown in figure.
So, 
Here, 
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