Which Came First Voltage Or Current?

Batteries produce a voltage that drives an electric current. Generators at dams drive a current that produces a voltage. Which comes first? This is like asking yourself the well known question about the chicken and egg. Voltage, currents and conductors all work together. If there is a voltage applied across a conductor, electric current flows. […]

Controlling Electrical Hazards of Alternating Current

The vast majority of hobby electronics projects run on batteries. Simple enough, but some projects need more current or higher voltages than batteries can easily provide. Instead of building a power supply that converts household AC current to a DC voltage for your project, you can make things much safer for yourself by using a […]

How To Deal With Static Discharge, Zaps And Shocks

One type of everyday electricity that is dangerous to both people and electronic gizmos is static electricity. They call it static because it’s a form of current that remains trapped in some insulating body, even after you remove the power source. With conventional AC and DC current, static electricity disappears when you turn off the […]

What Is Electricity?

Like most things in life, electricity is more complex than you may think. A lot of conditions have to come together to make that little spark when you touch a doorknob or provide the power to run a supercomputer. To understand how electricity works, it helps to break it down into its parts. Electrons are […]

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