b) A capacitor consists of two similar square aluminum parallel plates, each 8cmx2cm mounted parallel and opposite to each other. What is their capacitance in pF when distance between them is 2cm and the dielectric is air? If the capacitor is given a charge of 20pC, what will be the difference of potential between plates?

b) A capacitor consists of two similar square aluminum parallel plates, each 8cmx2cm mounted parallel and opposite to each other. What is their capacitance in pF when distance between them is 2cm and the dielectric is air? If the capacitor is given a charge of 20pC, what will be the difference of potential between plates?

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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1) A capacitor consists of two similar square aluminum plates, each 10cm mounted parallel and opposite to each other. What is their capacitance in when distance between them is 1cm and the dielectric is air? If the capacitor is given a charge of 500 , what will be the difference of potential between plates? How will this be affected if the space between the plates is filled with wax which has a relative permittivity of 4?
24 A capacitor with air between its plates is connected to a potential difference of 12 V and stores a charge of 51.24 C. If the capacitor is removed from the source in a loaded state and a piece of paper is placed between its plates, what will be the new capacitance of the capacitor? (Paper=3.7) A) 11,1 F B) 3,3 F C) 20 F D) 15,8 F E) 7,2 F