Question

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 below it and at a point directly above it? (Kindly explain in detail)​

Answer 1

Answer:

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