Question

Consider a sheet of paper with a thickness of 0.1 mm and a dielectric constant of 3. Suppose we would like to make a 1 F capacitor using this sheet as a spacer between two metallic plates.

Suppose we took out the paper dielectric (while keeping somehow the distance between the plates the same).

1.26 [1pt] What is the charge after the paper sheet is out completely?

1.26 ANSWER

1.27 [1pt] What is voltage across the capacitor after the paper sheet is out completely?

1.27 ANSWER

1.28 [2pt] How much work does it take to remove the sheet? Explain the sign of your answer

1.28 ANSWER

1.29 [2pt] How will the answer to 1.28 change is the capacitor remains connected to the 1V battery during the sheet removal.

1.29 ANSWER

Answer 1