electricity.jpg (5852 bytes)

BURNING A WIRE


EQUIPMENT
    redball.gif (326 bytes) Wire Burning Device
    redball.gif (326 bytes) Ni-Chrome Wire
    redball.gif (326 bytes) Power Supply
    redball.gif (326 bytes) Masking Tape


NARRATIVE
            Passing a high current through a thin wire (Ni-Chrome) will cause it to heat until it burns through.Connect the large power supply to both sides of the Wire Rack. The wire should be flagged with tape so that smoking will occur prior to the wire separating. The power supply should be at its lowest setting. Even at this setting, the tape will begin to smoke as soon as it is turned on. Slowly rotate the dial on the power supply until the wire separates. This will not take long. Then turn off the power supply.