In this lesson, students will explore the proportional relationship between the magnetic flux density at the center of a long, electrically charged coil and the strength of the electrical current.

• Students will understand the relationship between magnetic flux density and the strength of the electrical current.
• Students will determine the value of the magnetic constant.

• Magnetic flux density
• Electric Current

This lesson demonstrates the proportional relationship between the magnetic flux density at the center of a long, electrically charged coil and the strength of the electrical current. This is a more advanced experiment for high school students.
As a result, students will:

• Create a closed circuit.
• Determine a relationship from a graph.
• Calculate the value for the magnetic constant.
• Calculate percent error of the experimental value from the given true value.