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For more information, please see full course syllabus of AP Physics C/Electricity and Magnetism
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Electric Potential, Part 3

  • For a continuous charge distribution, V = Integral ( k dq / r), where the integral is over the charge distribution, and r is the distance from dq to the point where V is to be found.
  • In the lecture, examples are given, which show how to find the electric potential produced by a charged ring, a charged disk, and a finite line of charge.

Electric Potential, Part 3

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
    • Continuous Charge Distribution
    • Finding Potential for a Charge Point
    • Potential Produced at P
  • Charged Ring 8:38
    • Electric Field at Some Point of Axis
  • Charged Disk 19:32
    • Collection of Ring
    • Finding Potential Point Above the Ring
    • Potential Due to The Ring
  • Finite Line of Charge 35:56
    • Line of Change Along the X-Axis and Y-axis
  • Example 1: Charged Rod
  • Example 2: Bent Semicircle
  • Example 3: Bent Semicircle with Variables