Consider a long, straight, thick wire of radius 1 cm that carries a steady current. The direction of the magnetic field 0.5 cm from the center of the wire is

Question

Quizplus · Accepted Answer

The magnetic field around a current-carrying conductor is tangential to any circle centered on the wire. This is described by the right-hand rule, where the direction of the magnetic field lines is perpendicular to the radius and tangential to the circle at any point around the wire.

Consider a Long, Straight, Thick Wire of Radius 1 Cm