PURPOSE: To demonstrate mutual induction.

DESCRIPTION: Closing or opening the switch starts or stops current in the primary coil, inducing a voltage in the secondary which is seen by the projection galvanometer.

SUGGESTIONS:

REFERENCES: (PIRA 5K10.30)

EQUIPMENT: Mounted key switch, 1000-turn Leybold coil, 1000-turn coil from K2-27, 6-volt battery, projection meter.

SETUP TIME: 5 min.