Adjustable Capacitor with Dielectric
Next, we deposit a fixed amount of charge onto the left plate. Now, when the separation is widened, the electroscope shows a rising voltage, even as the amount of charge stays constant. When a block of plexiglass (a dielectric) is inserted between the plates, the voltage drops. However, when the plexi is removed, the voltage rises back up again, showing that the charge is still there.
This is one of the main reasons capacitors are built with dielectrics between their plates; more charge can be stored at a lower voltage.
- February 20, 2009 09:52
- Creative Commons Attribution-NonCommercial (What is this?)
- Additional Files
- 36513 times
Added almost 5 years ago | 00:01:40 | 15680 views
Added 3 years ago | 00:00:52 | 5806 views
Added over 7 years ago | 00:01:14 | 35963 views
Added 7 years ago | 00:00:49 | 40655 views
Added almost 7 years ago | 00:00:53 | 38551 views
Added over 4 years ago | 00:01:13 | 12818 views