#3 There were many interesting facts in this article. The thing that was new to me was how to make your meter do the math for you. It is important for anyone doing electrical diagnostics because they need to know that there is more than one way to check for voltage drops and find an open circuit. This article would be good for a beginner in electrical diagnostics along with a more advanced automotive technician because the technician may have forgotten the alternate way to make your meter do the work for you. The alternate way to make your meter do the work for you is so simple that I should have been able to pick up on it before reading the article, though I hadn’t. If you are measuring voltage drops on individual loads and thusly looking for an open circuit through current movement then that is fine. However you do have to remember that the voltage drop has to be an actual “drop” from the original power applied (12V ish). “Subtracting the value you see at the input from what you saw across the battery terminals will tell you how much of your source voltage has been dropped before whatever is left appears at the load input” (Glassford, p.4). That just confuses me, and makes me think that it is going to be a hard way to figure out something that I should just know how to do. The alternate way, and easier way is to put the voltmeter positive lead on the positive battery terminal and the negative lead on the input directly before the load you want to measure. In doing this you have cut out the actual math and made the meter do the math for you. This will tell you what the difference in voltage is between the two probes. If your meter leads are to short to do this, make a jumper wire, which is what I will be doing, to avoid the math. This “all inclusive” way to check for excessive voltage drops is a great tool, which I will remember now when looking for an open circuit.

#4 The most important thing (lightbulb) in the article for me was that “current (electrons) flows, voltage does not flow” (Glassford, p.2). It was important to me because I could see that in my head again. This showed me another way to look at the concept and connection between current and voltage. Then it also added in a small amount of resistance talking and I could actually apply Ohm’s Law, see Ohm’s Law, and understand the mathematics (though I don’t like math) of Ohm’s Law.