Electromagnetism Section, Lecture 17 (EM#9)

Chapter 31 - Sections 31.4, 31.5
Chapter 32 - Sections 32.1, 32.2

• Conductivity and Resistivity
• Connecting Potential and Current
• Resistors and Ohm's Law
• Circuit Elements and Diagrams
• Kirchoff's Junction and Loop Laws
• The Basic Circuit

Side-Screen Slides (including in-class quizzes)

PDF Format - 1 slide per page

PDF Format - 6 slides per page

Central Screen Tablet Notes

PDF Format

As promised in class, I have added a brief analysis of the Basic Circuit and a worked example of the analysis of a Multi-Battery Circuit to the Tablet Notes. These refer to the last three slides in the Side-Screen presentation above.

In-Class Questions

PDF Format

Supplementary Material

• Today's demonstration: (i) Measuring voltage vs. distance to derive electric field in a wire.

• Definition of Resistance in a Wire (Flash animation courtesy of the Physics Education Technology Project)

• Ohm's Law (Flash animation courtesy of the Physics Education Technology Project)

• Resistor Colour Code: Table and Calculator for Four- and Five-Band Resistors (Applet courtesy of Sizes, Inc.)

• Resistor Colour Code (Applet courtesy of the Molecular Expressions website)

• For your entertainment: Dave Barry's column on "What is Electricity? And Where Does It Go After It Leaves The Toaster?"

• Today's music selection: Gayle Tapper, Here the Tides Flow

The arrows let you jump to the previous or next class summaries.

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Last updated March 9, 2009.