Lines of the magnetic field produced by a long straight wire carrying a current are:
A)in the direction of the current
B)opposite to the direction of the current
C)leave the wire radially
D)circles concentric with the wire
E)lines similar to those produced by a bar magnet

Question

Quizplus · Accepted Answer

The lines of the magnetic field produced by a long straight wire carrying a current forms circles concentric with the wire, in a plane perpendicular to the wire. This can be observed by using a compass around the wire.

Lines of the Magnetic Field Produced by a Long Straight