Technology / Re: Can you explain this demonstration of a capacitor?« on: 24/03/2023 20:09:16 »
Thank you, ES. In question ( b ) the ammeter is registering a redistribution of charge between the variable cap and a fixed cap( the electroscpe ). Nothing new here, just my explanation of how i see it. In your final query the insertion of the dielectric leads to a lower stored energy so i imagine there is an attractive force when inserting the sheet and removing the sheet would require work, and hence reestablishment of the original 1/2CV˛.
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