Elenco R/C Snap Rover&reg - Manual (Page 17)

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Build the circuit shown and turn on the slide switch
(S1). Turn on the remote control unit, extend the
antenna, and press the left button. The LED (D4)
turns on and off slowly.
Project #13
OBJECTIVE: To build a remote control light.
Slow R/C Flashlight
OBJECTIVE: To show how capacitors store electrical charge.
Capacitor Battery Project #14
Build the circuit shown but leave the 100 μF
capacitor (C4N) unconnected. The orange and
gray jumper wires are placed on the base grid at
points C10 and E10.
Touch the capacitor across the jumper wires at
points C10-E10 to fill it with electricity. Now
place it across points A8-C8 to make noise, or
across points E8-G8 to flash a light. Move the
capacitor back to C10-E10 to refill it, then to A8-
C8 or E8-G8 again.
The 100 μF•capacitor acts like a battery. It can
store electricity for a while, then release it when
you need it. But a capacitor is a very weak
battery, and can only make noise or light for a
few seconds.
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