Two infinite length wires carry equal current and placed along x and y axis respectively. Atthe resultant magnetic field is zero ?(1) A. B(2) B. D(3) A.C(4) C.D
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Option b
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As the two infinite length wires are placed in cross section to each other.
- One wire in x direction and other in the y direction.
- If we consider wire in x direction the magnetic field around the current carrying wire is measured by the right hand rule.
- As the finger describe the magnetic field direction
- For both the wires are in cross-section.
- Therefore the direction of the magnetic field are in opposite to each other.
- At the point A and C they are opposite to each other so there magnetic field are opposite and zero.
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