TeachEngineering
Teach Engineering: Designing a Thermostat
Students investigate circuits and their components by building a basic thermostat. They learn why key parts are necessary for the circuit to function, and alter the circuit to optimize the thermostat temperature range. They also gain an...
Khan Academy
Khan Academy: Application of the Fundamental Laws
We solve a circuit by direct application of the fundamental laws: Apply element laws (Ohm's Law and the like) plus Kirchhoff's Laws to solve for the currents and voltages of a circuit.
Wolfram Research
Wolfram Science World: Gustav Kirchhoff
This site from ScienceWorld provides a short but factual biographical sketch of the German physicist, Gustav Kirchhoff and describes his most notable discoveries and contributions to the realm of science.