capacitor help pls
here the work done by external agent is being asked right??
before placing the dielectric battery is releasing charge CV/2. after placing the slab it will change. ofc initial and potential energy of system are diff. for work done by external agent Ui+Work by battery - Uf must be done right

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@Gyro Gearloose
Note for OP
+solved @user1 @user2...
to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.oh i get it now ig
total work done for carrying out this process is being asked
which is Wext + Wbattery
right??
so basically just final energy stored - intital energy stored
net work done ke lie yes ig