[Paul] knew that he could get an oscilloscope that would measure ... this circuit to feed precision data to his own bench equipment. He’s trying to visualize what’s going on with the current ...

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.

To measure the current flowing through a component in a circuit, you must connect the ammeter in series with it. Remember, electric current is measured in amperes, or amps for short.

The Wheatstone bridge is a ubiquitous circuit configuration that is useful in detecting small changes in resistance.

Note that measuring the voltage at the output now ... t matter much because the voltmeter is essentially an open circuit. No current flows so, therefore, there’s no voltage drop across the ...

This project demonstrates step-by-step instructions to measure current, voltage, and wattage with precision. Using simple components and coding, this circuit provides accurate readings ...