25. A parallel plate capacitor of capacitance C, is charged to a voltage Vand then the battery is disconnected. A dielectric covering one-third area of each plate is now inserted as shown in the figure. If charges on the capacitor plates get redistributed such that the portions covered with dielectric and not covered with the dielectric share equal amounts of charge, which of the following statements is/are true? (a) Dielectric constant of the dielectric is 2.0. (b) Charge appearing due to polarization on the surface of the dielectric is 0.25C,V. (c) Force of electrostatic interaction between portions of the plates covered with dielectric is equal to that between uncovered portions. (d) Force of electrostatic interaction between the plates after insertion of the dielectric becomes 9/8 times of its value before insertion of the dielectric.

25. A parallel plate capacitor of capacitance C, is charged to a voltage Vand then the battery is disconnected. A dielectric covering one-third area of each plate is now inserted as shown in the figure. If charges on the capacitor plates get redistributed such that the portions covered with dielectric and not covered with the dielectric share equal amounts of charge, which of the following statements is/are true? (a) Dielectric constant of the dielectric is 2.0. (b) Charge appearing due to polarization on the surface of the dielectric is 0.25C,V. (c) Force of electrostatic interaction between portions of the plates covered with dielectric is equal to that between uncovered portions. (d) Force of electrostatic interaction between the plates after insertion of the dielectric becomes 9/8 times of its value before insertion of the dielectric.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter19: Capacitors

Section: Chapter Questions

Problem 3RQ: A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted...

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