Physics 1120, General Physics 2: Electricity, Magnetism, and Optics

Instructors: Steven Pollock and Victor Gurarie

This is a really, really big resistor, built by Cressall for testing Rolls-Royce gas turbine power plants. It can handle 84 MW. Another impressive large scale project is Sandia's Z-facility which can produce currents of 20 million amps (for a very short amount of time!)

On the other end of the spectrum, people are now building nanoscale electronic components (wires, resistors, and transistors). Nanotubes are single-walled tubes of carbon, ONE atom thick, which can conduct electricity. They have a conductivity around 1E-4 Ohm, not quite as low as copper, but small enough to funtion well as a tiny wire.

Week 7 Highlights:

Lectures this week on Resistance and Electric Circuits.


Chapter 31

Special notes:

Home page from weeks 1, 2, 3, 4, 5, 6

I welcome your comments on the class and this website. Send them to victor dot gurarie at colorado dot edu.

(Many thanks to John Price for the original construction of this page!)