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In fig. two long parallel wires carry eq...

In fig. two long parallel wires carry equal currents in opposite directions. Point `O` is situated midway between the wires and `X-Y` plane contains the two wires and the position `Z`-axis comes normally out of the plane of paper. The magnetic field `B` at `O` is non-zero along

A

`X,Y,Z`

B

`X`-axis

C

`Y`-axis

D

`-Z`-axis

Text Solution

Verified by Experts

The correct Answer is:
D
The magnetic fields due to both the currents are along `'-Z`-axis'. So, they add up to give a net magnetic field along `'Z`-axis'
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A2Z-SOURCE AND EFFECT OF MAGNETIC FIELD-Magnetic Field Due To Current
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