Question

Draw In figure what the compass needles would show if that current is as shown in the figure. Make the arrow the “north” direction. (Please refer to picture)

Answer 1

The direction of the magnetic field around a current-carrying conductor is given by the right-hand thumb rule. In the figure, the direction of the flow of the current is into the plane of the paper.

Therefore the needles of the compass would align as,

In the above figure, the arrowheads indicate the north direction.