EXPERIMENT 1: MAPPING ELECTRIC POTENTIALS In this experiment, you will create an electric field and use a multimeter to detect and draw equipotential lines. PROCEDURE 1. Prepare the digital multimeter by inserting the black cord in the "COM" port and the red cord in the "VmA" port. 2. Turn the dial until the arrow points to the "20" in the "DCV" section located in the top left corner of the multimeter (Figure 6)