How to Measure Resistance in an Electronic Circuit

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Part of the video series: How to Build Electronic Circuits

Summary: Learn how to measure resistance in an electronic circuit in this free home maintenance video.

Views: 3,731 | Tags: design, safety, foundation, how-to, circuit, electronic, diagram, device, electronics, electronic circuits


About the Expert

Ross Safronoff Ross Safronoff started using a two piece VHS camera system, and then progressed to a 8mm camcorder, then Hi-8, followed by a mini-DV, and finally a Digital8. ... read more

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Video Transcript

How to Measure Resistance in an Electronic Circuit

Hello! This is Ross on behalf of expertvillage.com. How do you measure resistance? To measure resistance in a circuit can be tricky. Now for this you have a straight resistor like this. It is no big deal. I take a look at my meter. I see that this multimeter has a setting 4 ohms and I have it on there. Also, I have to set it to the right function. Here is the ohms symbol. So I turn it over here and you are going to have scales and the scale means the highest number that is read on the display. There is 20K or 20000, 200K, 2 megs or 2 million ohms and there is 20 million ohms. The probe, the common stays there the red lead is going to go into the part marked ohms this is V ohms that is for voltage or resistance and is connected to the resistor. This one is 192 ohms. What if I want to measure that resistor in the circuit, first of all I would want to remove the power. Then you go ahead and connect to it and that resistor is 185 ohms. But resistance is going to affected by other components in the circuit. So you have to be mindful that may not be the resistance and probably is not except in this circuit, there is not a lot of other components connected to it.

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