Hoola-Hoop

A large blue hoola hoop and a smaller ring

Concept Overview:

1. Right Hand Rule

Lecturer Procedure

Step(s) to Follow	Expected Result
1. Place compass array on document camera. 2. Place bar magnet vertically on compass array	Arrows seem to align in a circular pattern
Turn bar magnet over	Arrows point in opposition direction of circular pattern
Hold hula hoop in your right hand fist with your thumb pointing up.	Demonstrate that your fingers would show the direction of the magnetic field in the same way that compass needles do, provided that your thumb points in the direction of the current.

Step(s) to Follow

Expected Result

1. Place compass array on document camera.

2. Place bar magnet vertically on compass array

Arrows seem to align in a circular pattern

Turn bar magnet over

Arrows point in opposition direction of circular pattern

Hold hula hoop in your right hand fist with your thumb pointing up.

Demonstrate that your fingers would show the direction of the magnetic field in the same way that compass needles do, provided that your thumb points in the direction of the current.

**This could be suggested in conjunction with E&M: M - 30