Download Finding the Potential from the Electric Field

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

page
1
page
2
page
3
page
4
page
5
page
6
page
7
page
8
page
9
page
10
page
11
page
12
page
13
Document related concepts
no text concepts found
Transcript 
Finding the Potential from the Electric Field
The potential difference between two points in space is
where s is the position along a line from point i to point f.
That is, we can find the potential difference between two
points if we know the electric field.
We can think of an integral as an area under a curve. Thus a
graphical interpretation of the equation above is
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
EXAMPLE 30.2 The potential of a parallelplate capacitor
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
EXAMPLE 30.2 The potential of a parallelplate capacitor
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
EXAMPLE 30.2 The potential of a parallelplate capacitor
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Finding the Electric Field from the Potential
In terms of the potential, the component of the electric field
in the s-direction is
Now we have reversed Equation 30.3 and have a way to
find the electric field from the potential.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
EXAMPLE 30.4 Finding E from the slope of V
QUESTION:
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
EXAMPLE 30.4 Finding E from the slope of V
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Exam 1 Review
•  Test bank of problems for exam are posted on schedule
•  There will be conceptual questions
•  Conceptual questions from the end of chapters 26-30
•  Solutions will be posted by Friday-Saturday
•  # in problems will be different
•  Same grading as HW
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Group Problems
•  Start Ch 29 and Ch 30 HW
•  HW is due SUNDAY night – not Monday night!!!!
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Related documents