The Tangent Galvanometer
PHY 201 & 231
In this experiment, students will determine the magnitude and direction of the magnetic field of the earth. The magnitude and direction of a field produced by a current in a coil of wire will be determined. The students will use a directional compass to determine the resultant magnetic field of the earths and coiled wires magnetic fields. From these values, the magnetic field of the earth can be calculated.
Equipment
| Name | Location | Quantity |
| Dip Needle | JE-105A-S45 | 1 per room |
| Patch Cords | JE-Lab Rooms-ByChalkboard | 3 per table |
| Coils, Helmholtz | JE-105A-S45 | 1 per table |
| Directional Compasses | JE-105A-S45 | 1 per table |
| Multimeter, Digital - Sperry Handheld 9V | JE-105A- S59 | 1 per table |
| Power Supply, Extech (Model #382213) | JE-105A-X12 | 1 per table |
Notes
Put out the Extech power supplies. If there are not enough, use the Sargent-Welch power supplies.
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