Two wires carrying currents 
and 
are placed in a horizontal plane as given below. Then, magnetic field at point 
in the same plane will be (given
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
The magnetic field due to a long infinite wire at a perpendicular distance 
is given by 
and its direction is given by right hand thumb rule.
Magnetic field due to wire 
is pointed in inwards direction (according to right hand thumb rule)
[ 
gives perpendicular distance from first wire.] Field due to wire 
will be pointed in upwards direction.
So,
Hence, net magnetic field is 
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