Archive for November 16th, 2018
Coverage of capacitors as charge-storage devices, rather than filters:
We avoided all the calculus and derivations, taking the exponential waveform as a given for RC circuits:
Discussions of dielectrics, plate spacing / area, and suchlike:
Some handwaving discussion of construction, electrolytic capacitor innards, and The Plague:
A 1 F cap charged through a 1.8 kΩ resistor during most of the session to show what an 1800 s time constant looked like. Nope, it never quite got to the 3.5 V from the power supply, even when we all decided it was time to shut down!