Solving B.dl Question: Is Current 0 for Path AB?

[CH1991]

Homework Statement

Please check attachment or picture below.
http://i.imgur.com/PIwt0.png

Homework Equations

The Attempt at a Solution

Since there is no enclosed current for path AB, shouldn't it just be 0?
Thanks!

 

[gneill]

Homework Statement

Please check attachment or picture below.
http://i.imgur.com/PIwt0.png

Homework Equations

The Attempt at a Solution

Since there is no enclosed current for path AB, shouldn't it just be 0?
Thanks!

The question does not ask for the integral around the closed path.

 

[CH1991]

Thank you!