Physics 2135 (Engineering Physics II)

Lecture 10: 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
Lecture Notes: Videos:

Announcements Powerpoint
Electric Current Video Powerpoint
Current Density Video Powerpoint
Ohm's Law and Resistance Video Powerpoint
Resistivity Video Powerpoint
Temperature Dependence of Resistivity Video Powerpoint

Videos produced and narrated by Dr. Allan Pringle.