4. A charged metal sphere of radius a is surrounded by a conductor of inner radius b. The center sphere has a total charge of +Q and the outer conductor carries a total charge of -Q. +0 Find the capacitance of the a. system b. If the outer shell gets really large (b ) what is the capacitance of a single lone sphere? Calculate the energy stored in the capacitors from parts a and b. с.

4. A charged metal sphere of radius a is surrounded by a conductor of inner radius b. The center sphere has a total charge of +Q and the outer conductor carries a total charge of -Q. +0 Find the capacitance of the a. system b. If the outer shell gets really large (b ) what is the capacitance of a single lone sphere? Calculate the energy stored in the capacitors from parts a and b. с.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The plates of an air filled parallel-plate capacitor with a plate area of 16.0 Cm and a separation of 9.00 Mm are charged to a 145-v potential difference. After the plates are disconnected from the source. A porcelain dielectric with k=18 Is inserted between the plates of the capacitor. a. What Is the charge on the capacitor before and After the dielectric is inserted? b. what Is the capacitance of the capacitor After the dielectric Is inserted? c. What Is the potential difference between the plates of the capacitor After the dielectric is inserted? What Is the magnitude of the change in the energy stored in the capacitor After the dielectric is inserted?
4. A parallel-plate capacitor in air has a plate separation of 1.35 cm and a plate area of 35.0 cm2. The plates are charged to a potential difference of 150 V and disconnected from the source. The capacitor is then immersed in distilled water. Assume the liquid is an insulator. Determine: a. the charge on the plates before and after immersion b. the capacitance and potential difference after immersion c. the change in energy of the capacitor after immersion
A parallel-plate capacitor is connected to a battery of voltage, V, until one plate of the capacitor attains a charge, +Q, and the other plate of the capacitor attains a charge, -Q. If the distance between the plates is doubled, __________ . a. The capacitance of the capacitor is doubled. b. The potential difference between the plates is cut in half. c. The potential energy between the plates is cut half. d. The electric field between the plates remains the same. e. The area of both capacitor plates doubles.
A 3.50 cm in diameter parallel plate capacitor has a 1.50 mm spacing. The electric field inside the capacitor is 3 x 105 V/m.a. What is the potential different across the capacitor?b. How much charge is on each plate?c. If the charge on the plates remains the same as the plates are pulled apart will the voltage difference Increase decrease or stay the same?
A 30 mF capacitor is charged to 60 V and then connected across an initially uncharged 60 mF capacitor. What is the final potential difference across the 60 mF capacitor? A. OV B. 60 V C. 40 V D. 180 V E. 20 V
A fully charged capacitor can store 500 J of energy. Assuming it is charged using the typical 120V of potential, what must be the capacitance? a. 23 mF b. 69 mF c. 128 mF d. 424 mF
A 3.9-μF capacitor is fully charged by a 9.0-V battery. The battery is then disconnected. The capacitor is not ideal and the charge slowly leaks out from the plates. The next day, the capacitor has lost half its stored energy. A. Calculate the amount of charge lost.
Capacitor in Parallel. Capacitor are used on a Variety of devices, including defibrillators, microelectronics such as calculator, flash lamps, to supply energy. A. Calculate the energy stored in 15.0 μF capacitor of a heart defibrillator charged to 11.0×10^3 V. B. Find the amount of stored charge.
A parallel plate capacitor has square plates 7.5 cm on a side, separated by 0.29 mm. The capacitor is charge to 12 V, then disconnected from the charging power supply. a. Calculate the capacitance of this capacitor b. What is the total charge on each plate? c. What is the electric field between the plates?
a