Conceptual physics
This presentation is the property of its rightful owner.
Sponsored Links
1 / 15

Conceptual Physics PowerPoint PPT Presentation


  • 79 Views
  • Uploaded on
  • Presentation posted in: General

Conceptual Physics. Notes on Chapter 33 Electric Fields & Potential. Electric Fields & Potential. “ May the FORCE be with you ”. Electric Fields & Potential. All particles have an electric field around them. A electric field is a kind of aura that extends outward through space.

Download Presentation

Conceptual Physics

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Conceptual physics

Conceptual Physics

Notes on Chapter 33

Electric Fields & Potential


Electric fields potential

Electric Fields & Potential

“May the FORCE be with you”


Electric fields potential1

Electric Fields & Potential

  • All particles have an electric field around them.

    A electric field is a kind of aura that extends outward through space.


Electric fields potential2

Electric Fields & Potential

  • To show the effects of the electric field, we use a “small test charge” (which is positive) to determine the direction and strength of the field.


Electric fields potential3

Electric Fields & Potential

  • To show the effects of the electric field, we use a “small test charge” (which is positive) to determine the direction and strength of the field.


Electric fields potential4

Electric Fields & Potential

  • Since the field has magnitude and direction it is

    a vector and can

    be represented

    with vectors.

  • These vectors are called Field lines or Lines of force

    • (See fig. 33.3 pg. 519)


Electric fields potential5

Electric Fields & Potential

  • Where these force lines are close together, the force is strong. Where the lines are farther apart, the force is weaker.


Electric fields potential6

Electric Fields & Potential

Electric Shielding:

  • Because of mutual repulsion, electrons move as far apart as possible. On a hollow object, the interior will have NO CHARGE OR FIELD. The force on a test charge inside a hollow sphere will cancel to Zero


Electric fields potential7

Electric Fields & Potential


Electric fields potential8

Electric Fields & Potential

  • On odd shaped objects, the chargeinside is still zero, but not uniform on the outside.


Electric fields potential9

Electric Fields & Potential

Electric Potential Energy:

  • Remember chapter 8 when you lifted an object --- you did work on that object. The same thing applies here.

  • A test charge has

    Potential Energy by

    virtue of its position.


Electric fields potential10

Electric Fields & Potential

  • If the test charge is “let go”, the potential energy will be transferred into kinetic energy of movement.


Electric fields potential11

Electric Fields & Potential

Electric Potential = Electric potential energy

Charge

1 Volt = 1 Joule_____

1 Coulomb

  • Note --- The voltage of a balloon rubbed on your head can be very high. But the electric potential energy is low because of the small amount of charge.


Electric fields potential12

Electric Fields & Potential

Storage of Energy:

  • Electrical energy can be stored in a common device called a capacitor.


Electric fields potential13

Electric Fields & Potential

  • A capacitor is a devise that has two plates separated by a small distance and connected to a battery.

    • Note --- this can be a Shocking experience if you are the discharging path !


  • Login