Airport runway lighting circuits avoid this problem by using constant current power supplies to supply the series circuit. Impedance and capacitance What if a series circuit consists of elements other ...

GFCI basics. Before we get into GFCI requirements, let's address two basic points. First, GFCIs do work on 2-wire circuits. A GFCI works by measuring the current on the ungrounded conductor and ...

Andy recommends favorite resources for basic op amp circuits and includes a portion of TI's AN-20. Test your knowledge with ...

Every project (and house) is a bit different so it is always best to understand your own system, the basics of how the system should work, and gauge your comfort level with tackling different ...

What is electricity, and how does it work? What does it mean for electricity to seek a path to ground? These answers and more, plus a brief history of the War of the Currents, inside.