Equipment List:

1. Galvanometer (D4.3)
2. Magnetic Fields Kit: (in red bin) (D3.7, D3.8)
• Bar magnets (1 for each student)
• Coils
• Loop of orange wire, 10 turns
• Trapeze wire
3. Three small compasses (D2.1)
4. Horseshoe magnet (D3.7)
5. Telegraph switch (D4.2)
6. 0-11 volt variable power supply (D4.4)
7. Cables
• 2-alligator clip leads (D1.H, D2.H)
• 3-spade plug leads (C1.2)
8. 36cm threaded rod screwed into table (A2.5)
9. Pendulum clamp (A2.6)

General Class Use:

1. CENCO E/M apparatus (one per room) (A4.3)
• Bar magnet
2. Masking tape for marking N end of magnet
3. Battery for checking polarity of galvanometer

1. Setup the E/M apparatus in a dark closet for better viewing. Use power strips so it can be turned on/off with a switch.
2. Test power supplies and galvanometers.
3. Remagnetize the horseshoes, bar magnets, and compasses if necessary.