Lecture 9: Electric Current, Current Density, Resistance
Objectives:- Know the definition of electrical current
- Understand the difference between current and current density
- Use Ohm's Law and electrical resistance in solving circuit problems
- Understand the relationship between resistance and resistivity
- Use the temperature coefficient of resistivity to solve problems involving changing temperatures
- Video lecture_09a_current_density.mp4
- Slides for printing: lecture_09a_current_density.pdf
- Video lecture_09b_ohms_law.mp4
- Slides for printing: lecture_09b_ohms_law.pdf
- Video lecture_09c_resistance_nonuniform_cross-section.mp4
- Slides for printing: lecture_09c_resistance_nonuniform_cross-section.pdf