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R murali

Jul 5, 2014

# 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 and at a point directly above it.

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 and at a point directly above it.

Syeda

Answer. The current is in the east-west direction. Applying the right-hand thumb rule, we get that the direction of magnetic field at a point below the wire is from north to south. The direction of magnetic field at a point directly above the wire is from south to north.   SME Approved

Amarnathreddy M

  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 at a point directly above it?   Solution:   The current is in the east-west direction. Applying the right-hand thumb rule, we get that the direction of magnetic field at a point below the wire is from north to south. The direction of magnetic field at a point directly above the wire is from south to north.
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