https://physlab-wiki.com/ 2026-04-19T13:07:35+00:00 https://physlab-wiki.com/ https://physlab-wiki.com/lib/tpl/UChicago/images/favicon.ico text/html 2023-05-11T11:28:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/electricity_and_magnetism/dc_circuits/batteries_and_lamps?rev=1683818932&do=diff Batteries and Lamps These simple components allow one to demonstrate many of the most basic circuit concepts including Ohm's law, series and parallel circuits, and electrical power. Projection voltmeters and ammeters may be used in conjunction with this set-up. text/html 2021-09-15T17:24:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/electricity_and_magnetism/dc_circuits/electrical_equivalent_of_heat?rev=1631741074&do=diff Electrical Equivalent of Heat A known current is applied to two one ohm resistors submerged in a known volume of water inside a calorimeter. The current, voltage, and temperature of the water are monitored simultaneously and projected for the class to see. text/html 2021-09-15T17:24:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/electricity_and_magnetism/dc_circuits/galvanometer?rev=1631741086&do=diff Galvanometer All of the working parts of this simple, open galvanometer are clearly visible, making it easy for one to understand how this sensitive current-measuring device works. By placing a large resistor in series with the galvanometer, one may also show how it can be used as a voltmeter. text/html 2023-04-14T11:36:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/electricity_and_magnetism/dc_circuits/rc_circuits?rev=1681486577&do=diff RC Circuits A circuit comprising a resistor and capacitor is visible on a large roll-out cart. The values of the circuit components are variable so that students may see the effect of changing them. The circuit is driven by a waveform generator which can generate sine, square, and triangle waves at adjustable amplitudes and frequencies. The oscilloscope display can be projected onto the lecture hall wall or screen. text/html 2022-12-09T14:50:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/electricity_and_magnetism/dc_circuits/split-wires?rev=1670615427&do=diff Split Wires The paths of an audio jack are separated into two wires, one of which can be opened in order to interrupt the signal. The circuit can then be closed by connecting the open leads through some conductive material, be it an aluminum can or a bag of salt water (that is, a human body or bodies).