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Chapter 23, Problem 1CQ

l. 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.

Expert Solution & Answer
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To determine

The magnitude and direction of the electric field at a point in space.

Answer to Problem 1CQ

Solution:

The magnitude of the electric field at a point in space can be determined by a tiny positive charge and Columbic force. The direction of electric field is in the direction of force as we have taken positive test charge.

Explanation of Solution

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics, Books a la Carte Edition; Student Workbook for Physics for Scientists ... eText -- ValuePack Access Card (4th Edition), Chapter 23, Problem 1CQ , additional homework tip  1

To find the magnitude of electric field( E )

With the help of a tiny positive charge, the Coulomb force between tiny positive (q) charge and the charge (Q) at which we have to find electric field is measured. The requisite formula for force is given by

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics, Books a la Carte Edition; Student Workbook for Physics for Scientists ... eText -- ValuePack Access Card (4th Edition), Chapter 23, Problem 1CQ , additional homework tip  2

To find the direction of electric field ( E )

Since both force and electric field are vectors, they have magnitude and direction.Further from eqn(2), ( E )is a function of ( F )and hence the direction of ( E )will be the same as ( F )since qis positive.

Conclusion:

The magnitude of the electric field at a point in space can be determined by a tiny positive charge and Columbic force. The direction electric field is in the direction of force as we have taken positive test charge.

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Chapter 23 Solutions

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics, Books a la Carte Edition; Student Workbook for Physics for Scientists ... eText -- ValuePack Access Card (4th Edition)

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Electric Fields: Crash Course Physics #26; Author: CrashCourse;https://www.youtube.com/watch?v=mdulzEfQXDE;License: Standard YouTube License, CC-BY