Current is a measure of how much electric charge flows through a circuit. The more charge that flows, the bigger the current. Current is measured in amperes. The symbol for ampere is A. For example, ...

For more than a century, scientists have relied on separate tools to measure the three core building blocks of electricity: ...

Makers, developers, and hobbyists looking for a way to measure both voltage and current simultaneously may be interested in a new Arduino project published on the official Arduino blog. This project ...

There are many reasons why one would want to measure voltage and current in a project, some applications requiring one to measure mains and even three-phase voltage to analyze the characteristics ...

Measuring the amount voltage, amperage and direction of current a USB-C device is using is now easy with Plugable's new and updated USBC-VAMETER.

Allegro MicroSystems has integrated power, voltage and current monitoring into a single chip with reinforced isolation. Only a handful of resistors are needed to complete the high-voltage interface ...

Many smartphones have fast wired and Qi charging, but both are reduced by various optimizations to maintain your battery.

Learn how engineers design electrical circuits by calculating the voltage, current and resistance of electrical components.

Measuring DC current is not too difficult. Pass the current to be measured through a precision resistor, and measure the voltage drop across it using a sensitive voltmeter. I = V/R So far, so good.