Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 23: Q. 15 (page 653)

Three charges are placed at the corners of the triangle in FIGURE Q23.15. The ++charge has twice the quantity of charge of the two - charges; the net charge is zero. Is the triangle in equilibrium? If so, explain why. If not, draw the equilibrium orientation.

Short Answer

Expert verified

The couple due to opposite forces separated by distance makes the triangle rotate counterclockwise.

Step by step solution

01

Given information 

02

Explanation 

The electric field is uniform between the plates, so the force on the two positive charges due to negative charges on the first plate will act. Similarly, the force on the two negative charges due to positive charges on the second plate will at. Thus, the direction of two forces and acts in opposite direction. This causes the couple and hence the triangle will rotate counterclockwise.

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.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

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

You’ve been assigned the task of determining the magnitude and direction of the electric field at a point in space. Give a step-by-step procedure of how you will do so. List any objects you will use, any measurements you will make, and any calculations you will need to perform. Make sure that your measurements do not disturb the charges that are creating the field.

Honeybees acquire a charge while flying due to friction with the air. A 100mgbee with a charge of +23pCexperiences an electric force in the earth’s electric field, which is typically 100N/C, directed downward.

a. What is the ratio of the electric force on the bee to the bee’s weight?

b. What electric field strength and direction would allow the bee to hang suspended in the air?

A ring of radius Rhas total chargeQ.

aAt what distance along the z-axis is the electric field strength a maximum?

bWhat is the electric field strength at this point?

An electric field can induce an electric dipole in a neutral atom or molecule by pushing the positive and negative charges in opposite directions. The dipole moment of an induced dipole is directly proportional to the electric field. That is, p→=αE→, where αis called the polarizability of the molecule. A bigger field stretches the molecule farther and causes a larger dipole moment.

a. What are the units of α?

b. An ion with charge qis distancerfrom a molecule with polarizability α. Find an expression for the force F→ionondipole.

What are the strength and direction of the electric field at the position indicated by the dot in FIGURE EX23.4? Specify the direction as an angle above or below horizontal
See all solutions

Recommended explanations on Physics Textbooks

Linear Momentum

Read Explanation

Geometrical and Physical Optics

Read Explanation

Electromagnetism

Read Explanation

Medical Physics

Read Explanation

Physics of Motion

Read Explanation

Further Mechanics and Thermal Physics

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.

Sign-up for free