frame with variable speed
motor, distributor, ignition coil, and spark plug
202-20-F1
car battery
101-cart
switch
101-09-D4
camera
202-09-D
DESCRIPTION
Use the motor to drive the
distributor, close the switch to the battery, and show the
sparking of the spark plug. This demonstrates one
application of transformers - the ignition coil is used to
provide sufficient voltage for breakdown of the air in the
spark gap.
The distributor cap can be removed and the coil connected
directly to the spark plug. The leaves the cam, points,
and capacitor visible.
Don't leave the switch to the
battery closed for too long, to prevent things from heating
up.
Use the video camera to show the spark plug.
NOTES
The rotor electrode is worn down
and a bit short, so performance is better with the
secondary coil connected directly to the spark plug.
Connect the battery to the banana jacks on the panel, via
the switch.
REFERENCES
A description of car ignition
systems, with animations:
