Featured in PASCO’s Advanced Physics Teacher Guide

Advanced Physics Teacher Guide


This manual features over 30 College Board curriculum and AP Physics exam inspired lab activities.

Electric Field Mapping

Lab Summary

Use a voltage-current sensor to determine equipotential lines and electric field lines for various electrode shapes.


Students map equipotential lines and electric field lines for various electrode shapes.

  • Understand the definitions for both equipotential lines and electric field lines and be able to map both given a specific electrode geometry.


Students gain experience conducting the following procedures:

  • Setting up an electric field on conductive paper with electrodes of various size and shape.
  • Using a voltage sensor to find equipotential lines around an electrode.
  • Drawing electric field lines perpendicular to the equipotential lines.

Sensors / Equipment Used:

PASPORT Voltage-Current Sensor


Allows students to safely measure voltage and current simultaneously without overloading the sensor. For use with PASPORT Interfaces.

Field Mapper Kit


Allows students to map both the potentials and the electric fields around any two-dimensional charged conductors.

Alligator Clip Adapters


Converts banana plugs into alligator clips with this set of 10 adapters.

Materials Used:

DC Power Supply (up to 20 V)
Conductive Paper - 3 to 6
T-pins (or metal pins or thumbtacks) - 4

The Associated Bundle:

Advanced Physics Standard Sensor Bundle


This bundle contains the probeware needed to perform all 37 lab activities in the Advanced Physics lab manual.

Interface Required

This experiment may require software and an interface for data collection.