heres the design and this is just a demonstration
http://img406.imageshack.us/img406/682/save0298op7.jpg
2007-03-01 10:14:26 · 2 answers · asked by macgyver 1 in Science & Mathematics ➔ Engineering
The light will illuminate briefly when the circuit is first connected, then fade and go out as the condenser charges. The larger the value of the condenser, the more illumination will take place. If too small, current will pass through it, but not necessarily enough to see it glow.
2007-03-01 10:21:00 · answer #1 · answered by Steve 7 · 2⤊ 0⤋
Steve hit it on the head. Capacitors block DC current. You will get an initial rush of current as the capacitor charges, but if the capacitor is small, then this flicker might be too brief to see.
If you used an A/C power source instead, then the capacitor will simply behave like a resistor.
2007-03-01 18:31:39 · answer #2 · answered by Randy G 7 · 2⤊ 0⤋