Ed-2 Energy Stored in a Capacitor
Published: Tuesday 14 March 2006 - Updated: Tuesday 29 March 2011
To demonstrate the energy stored in a capacitor
- 8 Mfd Capacitor
- 5 kV Power Supply
- Insulated Screwdriver
Click on pictures to enlarge.
A charging circuit charges up the capacitor to 2.5 kV in approximately 20 seconds. The switch is used to isolate the capacitor from the power supply. The screwdriver is used to short the terminals of the capacitor which discharges with a mighty spark and sound effects.