What is the direction of the magnetic field around a wire carrying a current perpendicularly into this page?
A)The field is parallel to and in the same direction as the current flow.
B)It is parallel to but directed opposite to the current flow.
C)It is counterclockwise around the wire in the plane of the page.
D)It is clockwise around the wire in the plane of the page.
E)None of these is correct.

Question

Quizplus · Accepted Answer

According to the right-hand rule for the magnetic field around a current-carrying wire, if the thumb points in the direction of the current flow (perpendicular into the page in this case), then the fingers curl in the direction of the magnetic field lines. For this scenario, the fingers will curl clockwise around the wire in the plane of the page, so the answer is D.

What Is the Direction of the Magnetic Field Around a Wire