Revised 08/26/2019

Physics 2216 Laboratory Equipment List

Lab 15: Mapping Electric Equipotentials & Field Lines

Equipment List:

  1. 2x Auto Range Multimeter x2
  2. Variable AC Power Supply 0-6V
  3. Field Mapping Tray:
    • Water Tray
    • Mapping Tray Bottom
    • 3 x 3x Field Mapping Feet For levelling, attached to bottom already.
    • Binding Post Black Already attached.
    • Binding Post RedAlready attached.
  4. 2 x Brass Rectangular Electrode
  5. Styrofoam Cup - Large
  6. 2 x L Shaped Rods
  7. 3 x Banana Plug Cord - Black
  8. 2 x Banana Cord - Red
  9. Multimeter Lead - Red

General Class use :

  1. Paper towel to clean up water spills.
  2. Wet/dry shop vacuum for cleaning up the water at the end of each day.

Notes and tests:

  1. Last TA of the day should vacuum out each of the trays and set them where they can dry.
  2. Test by turning on the power supply and the two DMMs.   Make sure the multimeter dial is set to volts and the button is pushed to switch to AC from DC. Adjust the power supply so DMM2 reads 4 V.   Touch electrode A with the voltage probe attached to DMM1, it should read 0 V, then touch the probe to electrode B, it should read 4 V.
  3. The most likely problem with this set up is improper wire connections.   The next is a failed power supply.
  4. Level the trays with a bubble level.
  5. Black cables: DMM2->AC->DMM1, A->DMM2
  6. Red cables: DMM2->AC->B
  7. Red probe: DMM1
The whole table set up with the field mapping set up on the left side (which should be the side without the current limited power supply)

This is what your table should look like once set up

Additional Images below:

Image to see one way to wire the set up

The wiring.

Diagram of how to wire this lab set up

Wiring Diagram