Question

consider a current flows along a horizontal copper wire in south to North direction.What will be the direction of magnetic field at a point directly above it?​

Answer 1

Answer:

The 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