/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 5 a. Which point in Figure EX26.5,... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 26: Q. 5 (page 737)

a. Which point in Figure EX26.5, 'A' or 'B', has a larger electric potential?

b. What is the potential difference between 'A' and 'B'?

Short Answer

Expert verified

a. The point 'A' in Figure EX26.5has a larger electric potential.

b. The potential difference between 'A' and 'B' is -70V

Step by step solution

01

Given information and formula used  

Given figure :

Theory used :

1) Electric field lines point from high to low potential.

2) 鈭�V=-E路dx

02

Evaluating which point has a larger electric potential and the potential difference between 'A' and 'B'

(a) 'A' has a bigger potential than 'B' because the electric field lines point from high to low potential.

So,VA>VB

(b) The potential difference between 'A' and 'B' is :

role="math" localid="1649498158410" 鈭�V=-E路dx鈬�VB-VA=-1000脳7脳10-2=-70V

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A typical cell has a membrane potential of -70mV, meaning that the potential inside the cell is 70mV less than the potential outside due to a layer of negative charge on the inner surface of the cell wall and a layer of positive charge on the outer surface. This effectively makes the cell wall a charged capacitor. Because a cell's diameter is much larger than the wall thickness, it is reasonable to ignore the curvature of the cell and think of it as a parallel-plate capacitor. How much energy is stored in the electric field of a 50渭mdiameter cell with a 7.0nmthick cell wall whose dielectric constant is 9.0?

Two 4.0cm脳4.0cmmetal plates are separated by a 0.20mm-thick piece of Teflon.

a. What is the capacitance?

b. What is the maximum potential difference between the plates?

a. Find an expression for the capacitance of a spherical capacitor, consisting of concentric spherical shells of radii R1(inner shell) and R2(outer shell).

b. A spherical capacitor with a 1.0mmgap between the shells has a capacitance of 100pF. What are the diameters of the two spheres?

A vacuum-insulated parallel-plate capacitor with plate separation dhas capacitance C0. What is the capacitance if an insulator with dielectric constant 魏and thickness d/2is slipped between the electrodes without changing the plate separation?

You need a capacitance of 50mF, but you don鈥檛 happen to have a 50mFcapacitor. You do have a 30mFcapacitor. What additional capacitor do you need to produce a total capacitance of 50mF? Should you join the two capacitors in parallel or in series?

See all solutions

Recommended explanations on Physics Textbooks

Magnetism and Electromagnetic Induction

Read Explanation

Force

Read Explanation

Physics of Motion

Read Explanation

Engineering Physics

Read Explanation

Oscillations

Read Explanation

Electric Charge Field and Potential

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.