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 7 years ago | 00:02:36 | 91144 views
Added 7 years ago | 00:01:13 | 36848 views
Added almost 8 years ago | 00:00:53 | 40159 views
Added over 7 years ago | 00:02:51 | 51518 views
Added over 8 years ago | 00:00:56 | 55776 views
Added almost 8 years ago | 00:01:16 | 70895 views