PURPOSE: To show how a DC motor works.

DESCRIPTION: The AC/DC generator is used in reverse as a motor. A 4 volt power supply is connected across the rotating coil through the split-ring commutator, the 1.5 volt battery is connected to the permanent magnet by pressing a switch on the chassis, and the coil is given a bit of a push to start it rotating.

SUGGESTIONS: IMPORTANT NOTE: Please disconnect the power supply when not operating the motor so that the coil will not be destroyed.

REFERENCES: (PIRA 5K40.10)

EQUIPMENT: AC/DC generator with built-in 1.5 volt battery and volt power supply set to 4 volts.

SETUP TIME: None.