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
- 35167 times
Added 2 years ago | 00:00:47 | 3274 views
Added over 5 years ago | 00:01:23 | 60681 views
Added over 3 years ago | 00:01:00 | 15412 views
Added 5 years ago | 00:01:13 | 33281 views
Added over 5 years ago | 00:07:38 | 48679 views
Added over 6 years ago | 00:00:47 | 48763 views