Equipment List:

1. Dell Computer: Microsoft Excel
2. Tangent galvanometer (D2.2), with compass (D2.5)
3. Non-magnetic stand (D2.3)
4. Analog Ammeter (0~10A) (D4.5)
5. 0-11V power supply (D4.4)
6. Switch (double pole, double throw) (D2.5)
7. 22 Ω Rheostat (D2.4)
8. Small metric ruler (D5.1)
9. Six spade plug cables (3 long, and 3 short, +2 for newer switches) (C1.2)

General Class Use:

1. Dip Needle Compass (D2.3)
2. TV, DVD player, DVD: "NOVA: Magnetic Storm"

Notes and tests:

1. Connect the circuit and check that all the equipment works making sure you get current when switched both ways.
2. It may be necessary to fix some of the switches.
3. Have more good non-magnetic stands made.