Cornell University PHYS 2208
Lecture Activity: 15, Ampere’s Law Group member names:
Relevant textbook sections covered: 19-4
Turn in one worksheet per group when they are collected in lecture. You will get participation points for
answering the questions.
Learning Goals: To understand Ampère’s law.
1. What is the circulation of the magnetic field ∮ ⃗⃗ ⃗ for the closed line integration path shown in the
figure below?
2. The total current through the area bounded by the closed integration path is +2A. What are the size and
direction of i3?
3. The circulation of the magnetic field ∮ ⃗⃗ ⃗ for the closed line integration path shown in the figure
below is zero.
a) What can you conclude about the total current through the area bounded by
the closed integration path?
