From the course: Electronics Foundations: Fundamentals

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Measure DC voltage

Measure DC voltage

From the course: Electronics Foundations: Fundamentals

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Measure DC voltage

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- To measure voltage with my DMM, I'll start by connecting the black probe to the center comm port and the red probe for the port on the right with V for voltage. Next I'll need to turn the selector knob to choose the correct type of voltage measurement. This particular DMM has separate modes for measuring AC and DC voltage. And it has several ranges to choose from for each mode. The AC voltage mode is used to measure the voltage in circuits with alternating current, which is a special type of current that changes direction back and forth over time. Understanding how AC voltage works is beyond the scope of this course. So for now, just be aware that AC and DC are two different types of voltage that require different DMM measurement modes. You'll typically see the AC voltage mode represented on DMMs with the letters VAC or the letter V with the squiggly line. The DC voltage mode measures the voltage in circuits with…

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