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For more information, please see full course syllabus of AP Physics B
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Lecture Comments (1)

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Post by Henry Schmaltz on April 6, 2010

Thanks, I was confused on Kirchoff's rules til i saw this. Really cleared things up.

Kirchhoff's Rules

  • First rule: If you go around a circuit loop the potential drop is zero.
  • Second rule: At a node, the total current entering the node is equal to the total current leaving the node.

Kirchhoff's Rules

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
  • First Kirchhoff Rule 0:19
    • Two Resistance Connected With a Battery
    • Many Resistance
    • Increase in Potential from A to B
    • Charge Flowing fromHigher Potential to Lower Potential
  • Second Kirchhoff Rule 9:17
    • Current Entering
    • Total Current Arriving is Equal Current Leaving
  • Example 14:10
    • Battery 6 V, Resistance 20, 30 Ohms and Another Battery 4v
    • Current Entering I2+I3
  • Example 2 31:20
    • 2 Loop circuit with 6v and 12 v and Resistance, Find Current in Each Resistance
  • Example 3 42:02
    • Battery and Resistance in Loops
  • Ammeters and Voltmeters 56:22
    • Measuring Current is Introducing an Ammeter
    • Connecting Voltmeter, High Resistance
  • Extra Example 1: Find Current
  • Extra Example 2: Find Current
  • Extra Example 3: Find Current