electricity.jpg (5852 bytes)

WHEATSTONE BRIDGE



EQUIPMENT
    redball.gif (326 bytes) Demonstration Wheatstone Bridge
    redball.gif (326 bytes) Small Power Supply
    redball.gif (326 bytes) Projection Galvanometer
   

NARRATIVE
            The Wheatstone Bridge is a null instrument used to determine a resistance of a component (a light bulb) by comparison to a known resistance with very little current.