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This tutorial takes a shot at explaining how circuits can be used to measure things beyond the capacity of human senses.
This tutorial illustrates how the flow of water through a system of pipes can be used to understand the flow of current through an electric circuit.
The magnets here at the lab can generate massive amounts of heat. To cool them off, we need massive amounts of water. But first, we have to take the ions out.
Think iron, nickel and other "ferromagnetic" substances are the only ones with magnetic properties? In fact, everything reacts to magnetic fields in some way.
Discovering how cathode rays behave in a magnetic field was a big step forward for scientists trying to understand the mysterious phenomenon.
Many people interact with cathode ray tubes for part, if not most, of the day without having a clue how they work. Here's the inside scoop.
A fun look at how Van de Graaff generators illustrate electrostatic forces.
Electromotive Force (EMF) and its sidekick, back EMF, are interesting electromagnetic phenomena that aren't really forces at all.
Heating a metal conductor makes it more difficult for electricity to flow through it. See why in this tutorial.
A current can be induced in a conducting loop if it is exposed to a changing magnetic field.