(a) A parallel plate capacitor consists of plates with area of cross section of 120 cm², m What is the capacitance in pF when distance between them is 1.6 mm and the dielectric is air? (i) Calculate the value of capacitance in pF if the space between the capacitors is filled with a dielectric with relative permittivity of 4.5. Consider €o = 8.854 x 10 12 F/m

(a) A parallel plate capacitor consists of plates with area of cross section of 120 cm², m What is the capacitance in pF when distance between them is 1.6 mm and the dielectric is air? (i) Calculate the value of capacitance in pF if the space between the capacitors is filled with a dielectric with relative permittivity of 4.5. Consider €o = 8.854 x 10 12 F/m

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...

See similar textbooks

Similar questions

Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 - Hz power line. An ammeter indicates a circuit current of 8.6 amperes. How much current is flowing through the 40F capacitor?
4. In what form is the energy of a capacitor stored?
How many degrees are the current and voltage out of phase in a pure capacitive circuit?
In reference to the load, how are capacitors connected to help prevent voltage spikes and surges? Are capacitors connected in parallel or in series with the load?
In a pure capacitive circuit, does the current lead or lag the voltage?
Can current flow through a capacitor?
You find that a 25-F capacitor connected to 480 VAC is defective. The storeroom has no capacitors with a 480-VAC rating. However, you find two capacitors rated at 50 F and 370 VAC. Can these two capacitors be connected in such a manner that they can replace the defective capacitor? If yes, explain how they are connected and why the capacitors will not be damaged by the lower voltage rating. If no, explain why they cannot be used without damaging the capacitor.
You are working in an industrial plant. You have been instructed to double the capacitance connected to a machine. The markings on the capacitor, however, are not visible. The capacitor is connected to 560 volts and an ammeter indicates a current of 6 amperes flowing to the capacitor. What size capacitor should be connected in parallel with the existing capacitor? What is the minimum AC voltage rating of the new capacitor? What is the minimum DC voltage rating of the new capacitor? What is the minimum KVAR size that can be used in this installation?
Suppose the space between the plates of the capacitor is filled with equal thickness of the same dielectrics but arranged as shown in the figure. Eachhaving an area of 8.0x10 -4 m 2 and separated from each otherby 5.0 mm. Half of the space between the plates is filled withglass and the other with mica. What is its capacitance?
The plates of a parallel-plate capacitor are square and have the length of one side. 20 cm and the distance between the plates is 0.5 cm. The material between the plates is air.What is the capacitance of a parallel plate capacitor in farads?
Determine the total capacitance, total charge, individual voltage drop and charges across each capacitor. Use two decimal places for your answer. Put your answer for the individual voltage and charge for each capacitor in a table for faster checking. Thank you! Here are the values for the capacitors: C1 = 34 C6 = 29 C2 = 46 C7 = 38 C3 = 28 C8 = 23 C4 = 43 C9 = 32 C5 = 24 C10 = 23
3.1 A capacitor is made up of two dielectric materials A and B of relative permittivity of 2.5 and 4, and thickness 1 mm and 3 mm respectively connected in series. 3.1.1 If the cross-section of each dielectric is 500 mm2 determine the total capacitance.