A capacitor is made of a solid metal sphere of radius a = 2cm and a spherical thin metal shell of radius b = 6cm. The insulator between the two metal electrodes has a relative permittivity equal to 9. What is the capacitance C of the structure? 12.7 pF 30 pF 100 mF - 33 pF

A capacitor is made of a solid metal sphere of radius a = 2cm and a spherical thin metal shell of radius b = 6cm. The insulator between the two metal electrodes has a relative permittivity equal to 9. What is the capacitance C of the structure? 12.7 pF 30 pF 100 mF - 33 pF

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Capacitor

The capacitor is an element used to store electrical energy in the electrical field. A capacitor is a form of passive energy.

Question

A capacitor is made of a solid metal sphere of radius a = 2cm and a spherical thin metal shell of radius b = 6cm. The insulator between the two metal electrodes has a relative
permittivity equal to 9. What is the capacitance C of the structure?
O
12.7 pF
O 30 pF
O 100 mF
O-33 pF

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