The graph that best represents the magnetic field B between the coils of radius R of a Helmholtz pair as a function of distance along the axis of the pair is
A) 1
B) 2
C) 3
D) 4
E) 5

Question

The graph that best represents the magnetic field B between the coils of radius R of a Helmholtz pair as a function of distance along the axis of the pair is
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Quizplus · Accepted Answer

The magnetic field between the coils of a Helmholtz pair is considered to be uniform, and this is represented by a straight line on a graph. Option C shows a straight line, indicating a uniform magnetic field, and none of the other options do. Therefore, option C is the best choice.

The Graph That Best Represents the Magnetic Field B Between