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• 11:57, 20 April 2022 Physdemo talk contribs created page RC--Light Bulb and Capacitor (Created page with "{{NewDemo|subject=Electricity and Magnetism|topic=Circuits|file1=}} There are two ways to do this demonstration. One is using a high-voltage power supply of around 120 volts connected to a 10-20 thousand micro-farad capacitor. The power supply is used to charge the capacitor. When the capacitor is fully charged, a light bulb is placed across it. The bulb starts out bright, and then dims. The other way to do this is to use low-voltage light bulbs such as flashlight bulbs...")