Experiment Em-14
Spark Plug
Description: A
spark plug is built from a capacitor whose ends are connected to a spark gap.
When sufficient charge has built up in the capacitor, the spark gap will break
down and allow a spark through. The branching of points indicates the direction
of propagation of the leader spark. Note that the circuit is also controlled by
a switch.
Experimental
setup capacitor (right), switch (bottom left), spark gap (upper left)
This page was last updated on
Friday August 15, 2008 8:37 PM
