Measure current and voltage on different places in a wheatstone bridge and determine an unknown resistance. Superconductivity, a students' guide. Links and info for the beginner. ShockWave applet illustrates impedance in RLC series circuits. By Fu-Kwun Hwang.
Sliders easily change variables and results are graphed.
Shows transient behavior that occurs when the capacitor is being charged and discharged. By Fu-Kwun Hwang. History and links to magnetism and the history of the time. The Exploration of the Earth's Magnetosphere Series of lessons about magnets, their effect on charged particles, and the Earth's radiation. Magnetic chaotic pendula.