In this lab you will be looking the factors that determine either the electric field, the voltage or both in the region around a centrally located charge. Use the sensor control area to move the yellow sensor around the space, but don't get too close to the central charge or you will be ejected to the farthest reaches of your space. Click on the displayed sensor value to switch what values are being measured.

When you are ready to start this activity, click on the begin button.