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.
You need to log in, in order to post comments.
Added over 7 years ago | 00:01:13 | 37909 views
Added almost 9 years ago | 00:00:53 | 51096 views
Added almost 9 years ago | 00:01:40 | 59744 views
Added almost 8 years ago | 00:01:19 | 49034 views
Added 8 years ago | 00:02:54 | 50885 views
Added over 8 years ago | 00:00:47 | 53603 views