1. Connect the 750 Interface to the serial or SCSI port of the computer and plug the Current Sensor into the analog channel A and the Voltage Sensor in analog channel B.
   
   
2. Construct a simple series circuit with the empty battery holder, long bulb in socket, and Current Sensor (see photo below).
   
   
3. Be certain to wire the Current Sensor in series with the light bulb and wire the Voltage Sensor in parallel with the light bulb (see photo below).
   
   
   

To download the Ohm's Law DataStudio file, click on a Windows (Zip file) or Macintosh (Stuffit file).

You are now ready to begin collecting data.