A horizontal wire carries a current straight toward you. From your point of view, the magnetic field caused by this current

Question

Quizplus · Accepted Answer

According to the right-hand rule, if the thumb of your right hand points in the direction of the current, the fingers curl in the direction of the magnetic field. Since the current is coming toward you, the magnetic field circles the wire in a counter-clockwise direction.

A Horizontal Wire Carries a Current Straight Toward You