9th Edition

ISBN: 9781133947271

Author: Raymond A. Serway, John W. Jewett

Publisher: Cengage Learning

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Water constitutes about 70% of earth. Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particle…

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Textbook Question

Chapter 26, Problem 26.68AP

A parallel-plate capacitor of plate separation d is charged to a potential difference ΔV₀. A dielectric slab of thickness d and dielectric constant κ is introduced between the plates while the battery remains connected to the plates. (a) Show that the ratio of energy stored after the dielectric is introduced to the energy stored in the empty capacitor is U_ε/U₀ = κ. (b) Give a physical explanation for this increase in stored energy. (c) What happens to the charge on the capacitor? Note: This situation is not the same as in Example 25.5, in which the battery was removed from the circuit before the dielectric was introduced.

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Chapter 26, Problem 26.67AP

Chapter 26, Problem 26.69AP

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Chapter 26 Solutions

Physics for Scientists and Engineers

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Solution Summary: The author explains that the ratio of energy stored after the dielectric is introduced to the energy in the empty capacitor is U_E

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Chapter 26 Solutions