Question

A current in a wire points into the page. What is the direction of the magnetic field directly at "3 o'clock"? at "6 o'clock"

Answer 1

Using the right-hand rule, the magnetic field at '3 o'clock' is downwards, and at '6 o'clock' it is to the left for a current pointing into the page.

Step-by-step explanation:

The question relates to the magnetic field created by a current in a wire and how to determine its direction. According to the right-hand rule, if the current points into the page, the magnetic field will circulate clockwise around the wire. Therefore, directly at '3 o'clock,' the magnetic field will be pointing downwards, and at '6 o'clock,' the magnetic field will point to the left. This is because we imagine standing on the wire and using our right hand, pointing the thumb into the page with the fingers curling in the direction of the clock's hands.