Electrons are going around a circle in a counterclockwise direction as shown. At the center of the circle they produce a magnetic field that is:
A) into the page
B) out of the page
C) to the left
D) to the right
E) zero

Question

Electrons are going around a circle in a counterclockwise direction as shown. At the center of the circle they produce a magnetic field that is: 
A) into the page 
B) out of the page 
C) to the left 
D) to the right 
E) zero

Quizplus · Accepted Answer

By using the right-hand rule for the direction of magnetic field, we can see that the magnetic field produced by the electrons is into the page.

Electrons Are Going Around a Circle in a Counterclockwise Direction