A current through a horizontal wire is from east to west. What is the field above and below the wire?
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A current through a horizontal power line flows in East to West direction What is the direction of magnetic field at a point directly below it and a point directly above it.
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Explanation:
Here it is happy to help
Use right hand thumb rule
Always point your thumb in direction of current now if you take the plane of north south east west as a page
Thenn
By right hand thumb rule
Above the wire direction of magnetic field is into the page and below it its out of the page
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