1 / 26

Introduction to Electricity

Learn about electric potential energy, charge measurement, voltage calculations, and the relationship between potential difference and energy. Explore practical examples and common misconceptions in this informative guide.

joang
Download Presentation

Introduction to Electricity

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction to Electricity www.assignmentpoint.com

  2. Applications of Electrostatics www.assignmentpoint.com

  3. Electric Charge • Measured in COULOMBS • Six million trillion electrons is about - 1 C. • Six million trillion protons is about + 1 C. www.assignmentpoint.com

  4. Electric Potential Energy www.assignmentpoint.com

  5. Electric Potential Energy • This spring has more SPE when it is compressed www.assignmentpoint.com

  6. Electric Potential Energy • This spring has more SPE when it is compressed • Likewise, these charges will have more potential energy when they are pushed closer www.assignmentpoint.com

  7. Electric Potential Energy • PE equals the amount of work done to move a charge from one place to another. www.assignmentpoint.com

  8. www.assignmentpoint.com

  9. Electric Potential Energy • Which will have the larger electric potential energy? www.assignmentpoint.com

  10. Electric Potential Energy • A – because it requires work to move it away from the negative charge. www.assignmentpoint.com

  11. Electric Potential (volts) • EP = work/charge www.assignmentpoint.com

  12. Electric Potential (volts) • Example:  1000 joules of work is done tomove the charge q from far away to the place indicated. If q = 10 C, what is the electric potentialat the new location? www.assignmentpoint.com

  13. Electric Potential (volts) • Example:  1000 joules of work is done tomove the charge q from far away to the placeindicated. If q = 10 C, what is the electric potentialat the new location? • Voltage = work/charge • V = 1000 J/10C = 100 Volts www.assignmentpoint.com

  14. Electric Potential (volts) • What if the charge in the previous problem were now 100 C instead of 10? What would happen to the EP? www.assignmentpoint.com

  15. Electric Potential (volts) • What if the charge in the previous problem were now 100 C instead of 10? What would happen to the EP? • IT WOULD BE THE SAME!!! • Work would also increase www.assignmentpoint.com

  16. Electric Potential (volts) • Electric potential is associated with LOCATION, not CHARGE www.assignmentpoint.com

  17. Electric Potential vs Potential Energy • Which charge has more electric potential? • Which has more potential energy? www.assignmentpoint.com

  18. Is 5000 Volts Dangerous? www.assignmentpoint.com

  19. Is 5000 Volts Dangerous? • NOPE! • When 1 million electrons are added to a neutral balloon, it has an electric potential of 5000 volts www.assignmentpoint.com

  20. Potential Difference (voltage) • Difference in electric potential between two points. www.assignmentpoint.com

  21. Potential Difference (voltage) • Difference in electric potential between two points. • Potential difference between A and B is 0 A B www.assignmentpoint.com

  22. Potential Difference (voltage) • Difference in electric potential between two points. • Now there is a potential difference A B www.assignmentpoint.com

  23. Potential Difference • Batteries provide potential difference between one end of the circuit and the other www.assignmentpoint.com

  24. Potential Difference • Batteries provide potential difference between one end of the circuit and the other • Charges flow from high to low electric potential www.assignmentpoint.com

  25. Potential Difference (voltage) • Why aren’t birds on power lines shocked? www.assignmentpoint.com

  26. Potential Difference (voltage) • Why aren’t birds on power lines shocked? • The Potential Difference between their feet is zero! (0 voltage) www.assignmentpoint.com

More Related