A vertical straight conductor carries a current vertically upwards. A point P lies to the east of it at a small distance and another point Q lies to the west at the same distance. The magnetic field at P is
Text Solution
Verified by ExpertsThe correct answer is:
B
Let 
be a straight conductor carrying current 
in the direction from 
to 
.
Magnetic field at 
at a distance 
is
Hence, magnetic field is same at both points 
and 
.
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