This animated gif illustrates the changing voltages a conventional inverting amplifier when it receives input from a current source rather than a voltage source. Notice that the input resistor does not offer any...

This page is a comprehensive tutorial on resistance, accompanied by three interactive simulations. One allows the user to glimpse resistance at a molecular level; the second explores Ohm's Law; and the third introduces...

In this activity from the PTRA manual "Role of the Laboratory in Teaching Introductory Physics", students set up their first circuit using meters and specially made resistors in heat sink boxes (not required), which do...

Objective: The object of this lab is to show how temperature affects the conductivity (resistance) in various electrical materials and devices.

On this interactive site, visitors with a penchant for velocity-time graphs, kinematics, and the world of motion will be well-served. Created as part of "The Physics Classroom" portfolio of educational materials, this...