Set-up Instructions for E&M: M - 13

Equipment Locations
Item Location
Broken Magnet Set 4, Cabinet 1, Shelf 3

Set-up Instructions:

1. 1 Day prior to use, make sure that magnet is in tact - use Scotch Quick Dry Adhesive to reconnect the 2 pieces of broken magnet as needed.  Periodically, remove residue from past glues from the break.

2. Set magnet on its side when placed in lecture hall


Alternate Apparatus
Item  Location
Electromagnet Set 4, Cabinet 2, Shelf 2
Rheostat Beneath Demo Bench
DC Switch  
Knitting Needle Set 3, Cabinet 1, Shelf 3
Cutting Pliers  
Compass Needle Set 4, Cabinet 1, Shelf 3
Iron Filings  

Set-up Instructions for Alternate Demonstration:

1. Connect rheostat and electromagnet in series with the DC switch.

2. Connect AC terminals to one end of the switch and DC terminals to the other end of the switch.

3. Test the knitting needle for magnetization. 

4. If it is magnetized, demagnetize it by exciting the electromagnet with the AC and running the needle back and forth a few times across the end of the core and then withdrawing slowly from the field of the excited magnet.